单选题They discussed the problem three or four times, but could come to no ______.

单选题 Questions13-16 are based on the passage you have just heard.

单选题I could then realize that he was a fever specialist of world ______.

单选题All the following statements are the argument against ESRC’ s policy except

单选题Many old people in the cities find themselves unable to get used to the rapid ______ of city life.

单选题The disease failed to______to the new drugs the doctor applied.

单选题You don't object ______ you by your first name, do you?

单选题下面的短文后列出了10个句子，请根据短文的内容对每个句子作出判断：如果该句提供的是正确信息，选择A；如果该句提供的是错误信息，选择B；如果该句的信息文中没有提及，选择C。在答题卡相应位置上将答案选项涂黑。A Female Kenyan Wine Producer　　Mrs.Karanja is the founder of the only large-scale brewery 酿酒厂 in K

单选题Looking back upon the whole process, we have every reason to ______ our success to Mary who suggested the right method at the beginning.

单选题阅读下列短文，然后根据短文的内容从每小题的四个选择项中选出最佳的一项。D　　You know what a hotel is, of course.And perhaps, you also know what a condo is－a residential（居住的）building divided into separate units that are owned by different

单选题Which of the following statements is NOT true of the two ferry disasters?

单选题The heavy rain______, the students went on planting trees.

单选题 唐诗(Chinese Tang poetry)泛指创作于唐代(618年—907年)的诗。唐诗是汉族最珍贵的文化遗产之一，同时也对周边民族和国家的文化发展产生了巨大影响。而流传最广的当属《唐诗三百首》(Three Hundred Poems of the Tang Dynasty)，里面收录的许多诗篇都为后人所熟知。唐代的诗人很多，其中李白、杜甫等都是世界闻名的伟大诗人，他们的作品有很多都是脍炙人口的诗篇。唐代诗歌的创作技巧多样，题材丰富，是我国诗歌发展的最高成就。

单选题You cannot ignore the situation forever, one day you will have to ______ the consequences of your act. A. look up to B. wake up to C. stand up to D. face up to

单选题根据下面资料，回答21-35题。In the past， I always thought that being a teacher was an easy job. But I changed my（21）when I became a part-time teacher. About four years ago， Richard asked me（22）I could help teach

单选题 The Health Benefits of Drinking Water —Is Bottled Drinking Water Healthier Than Filtered Tap Water? A. Water is a key ingredient in a healthy diet and lifestyle. There are many health benefits of drinking water. It helps flush impurities and toxins out of our systems. It aids in the delivery of oxygen and nutrients. In fact, nearly every system in our bodies relies on water for proper functioning. But what will happen if the water you drink is unhealthy? B. In past decades, concerns about tap water and its impact on overall health led some people to turn to bottled drinking water instead. However, in those days, there were few choices of bottled waters. You could pay to have a company deliver large bulky plastic bottles of water for the water cooler. Or you could purchase gallon jugs of distilled or 'drinking water' at the grocery store. C. In recent years, there has been an explosion in the number of different bottled waters available, with big distributors such as Coke and Pepsi jumping on the bandwagon. But are bottled drinking waters like Coke's Dasani brand, Pepsi's Aquafina, or Wal-Mart's store brand really any healthier than your tap water? Or would you be better off with a drinking water filtration system? D. As we have learned more about the water we drink, the technology behind drinking water filters and purification systems has improved dramatically. There are filters to remove impurities, chemicals, heavy metals, bacteria and most every contaminant you can think of. With the fight size and filter combination for your specific home, your water can be exceptionally pure and healthy. Cost Comparison E. Drinking water filtration systems have also become more affordable and easy to use. Although the initial cost of a whole house system usually amounts to several hundred dollars, that cost is often less than $100 each year if spread out over the life of the system. There may be additional expenses to replace carbon filters, membranes in reverse osmosis drinking water filtration system, or lamps in an ultraviolet light water treatment device. These expenses can add another $100 or so to the annual costs of operating drinking water filters and purification systems. F. While some people may hesitate to spend so much each year for clean, safe drinking water, they are probably paying more for bottled drinking water. Calculations show that at a price of $1 to $4 per gallon, bottled or delivered water costs an average of $400 each year, especially if you purchase individual bottles. And that doesn't take into consideration the gas needed to drive to the store or the environmental impact of all the empty plastic bottles. Health Aspects G. Many people who choose bottled drinking water understand that it is more expensive, but they are still willing to pay the extra money because bottled water is thought to be safer and healthier than filtered drinking water. After all, bottled water is often marketed as 'natural spring water' or 'pure glacier water.' H. In reality, few bottled waters come from natural springs, and most of them use municipal tap water. The companies are able to get away with this false marketing because the regulations and standards for bottle drinking water are less stringent than those for residential drinking sources. I. The quality of bottled water is regulated by the Food and Drug Administration (FDA), while drinking water systems are typically regulated by State regulations or the Environmental Protection Agency (EPA). This doesn't mean that the FDA isn't doing their job. It's just that the rules for bottled water only require it to be as good as tap water, not better. J. In addition, the FDA regulations only apply to bottled drinking water that is transported across state lines. If a company sells their bottled drinking water in the same state where it was bottled, the federal regulations don't apply. The result is that many bottled waters are not any healthier than filtered water, and in fact some are less pure. K. This was demonstrated in a study which was conducted in 1999 by the Natural Resources Defense Council. They tested over 100 brands of bottled drinking water and found that about one third of the waters contained contamination in the form of chemicals, bacteria, and arsenic. The study also found that up to forty percent of bottled drinking waters come from a city water system. How to Tell if Your Water Is Healthy L. So how do you tell if the water you are drinking is healthy? With tap water, it is relatively easy. If you water comes from a municipal source, the suppliers are required by law to provide annual water quality reports. If you have a well, you can have an authorized lab test your water. It may cost $100 or more, but it's a small price to pay for peace of mind. Or you can purchase a kit and test it yourself, but naturally the results may not be as conclusive or reliable as those produced by authorized labs. M. When it comes to bottled drinking water, it can be more difficult to know what you are getting. Start by checking the label or the bottle cap. Some may tell you that the water comes from a municipal source or 'community water system', which means tap water. N. If the label doesn't give any information, you can call the bottler and ask. But don't be surprised if you get the run around and are transferred to several different departments. Some states have a bottled water program that tracks bottled drinking water and can tell you the origin of the source water as well as other information. O. Safe and healthy drinking water has become big business. Thousands of companies are vying for your hard earned cash, and some are not always honest about what their products offer. The initial investment for a home drinking water filtration system can seem expensive at first, but over time, it is usually less expensive than bottled drinking water. And with a water filter, you at least know where the water you drink came from and how it was treated. P. Before going out and spending your hard earned money for bottled drinking water that may, be no better than your own tap water, it is obviously a good idea to do some research. You are likely to decide that a drinking water filtration system and/or purifier is the healthier choice and provides the best value as well.

单选题Some countries love to ______ their own ideas on others. A. impose B. force C. put D. emphasize

单选题We can learn from the text that the America's central bank ______.

单选题If you think a letter is too slow, why not try______a telegram?

单选题They have ______ the price of the coat from $ 50 to $ 25. A. decreased B. lessened C. reduced D. diminished