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。The Power of a Parent　　Tom is a young man being raised on the poor sdiveets of Los Angles by his f

单选题By the time new doctors get a job and try to finish their theses in spare time ______.

单选题During his two-month stay in China, Tom never______a chance to practice his Chinese.

单选题An education should enable a student to get a better job than he would ______ be able to find or fill.

单选题Too much alcohol dulls your senses, but a study in Japan shows that moderate drinkers have a higher IQ than teetotalers. Researchers at the National Institute for Longevity Sciences in Aichi Prefecture, 250 kilometers west of Tokyo, tested the IQs of 2000 people between the ages of 40 and 79. They found that, on average, men who drank moderately—defined as less than 540 milliliters of sake or wine a day— had an IQ that was 3. 3 points higher that men who did not drink at all. Women drinkers scored 2. 5 points higher than female teetotalers. The type of alcohol didn" t influence the results. The volunteers tried a variety of tipples, which ranged from beer and whisky to wine and sake. The researchers are quick to point out that the results do not necessarily show that drinking will make you more intelligent. " It" s very difficult to show a cause-effect relationship," says senior researcher Hiroshi Shi-mokata. "We screened subjects for factors such as income and education, but there may be other factors such as lifestyle and nutritional intake. " Shimokata says that people who drink sake, or Japanese rice wine, tend to eat more raw fish. This could be a factor in enhanced intelligence, as fish often contain essential fatty acids that have been linked to brain development. Similarly, wine drinkers eat a lot of cheese, which is not something Japanese people normally consume or buy. Shimokata says the high fat content of cheese is thought to be good for the brain. If alcoholic drinks are directly influencing IQ, Shimokata believes chemicals such as polyphenols could be the critical factor. They are known to have antioxidant properties and other beneficial effects on ageing bodies, such as dilating constricted coronary arteries. The study is part of a wider research project to find out why brain function deteriorates with age.

单选题For generations，the Nganyi people of western Kenya have served as rainmarkers，helping local communities decide when best to prepare their land and SOW their seeds.By observing subtle changes in nature

单选题Only through diplomatic means ______.

单选题The committee members agreed to the proposal that .the issue _ to immediate voting.

单选题Michael"s new house looks like a palace, compared ______ his old one.

单选题Navigators on ships and aircraft use a compass to determine ______ they are heading.

单选题Medical equipment sold to doctors is an instance of ______.

单选题 DNA fingerprinting is used to determine where particular genetic material came from, that is what person or group of people's material is mostly likely to come from. Only 1% of our DNA differs from other individuals since 99% of human DNA is identical. That 1% though can allow scientists to differentiate its origin. DNA fingerprinting is most commonly used to determine our heredity. When used alongside more traditional sociological methodologies, DNA fingerprinting can be used to find out exactly where we came from, in some cases, which tribe. However, DNA fingerprinting cannot discriminate between identical twins. Most people are aware of the use of DNA fingerprinting in forensic medicine. Samples gathered at a crime scene can be compared with the DNA of a suspect to prove his or her presence at or involvement with the crime. The problem is that DNA bases only hold the DNA of people who have already been convicted of a crime. They do not contain the DNA of whole populations so it impossible to use this technique to track down suspects that are nor present in the database. However this might change. If governments replace photograph ID cards to that of DNA fingerprint ID cards, then it will be far easier to track down anyone within a nation's population. DNA fingerprinting can also help us to predict our future health. It is often used to track down the genetic basis of inherited diseases. If there is a particular, recurring pattern in different patients, scientists can narrow down which gene or genes might be involved. It can also be used to screen parents and fetuses for the presence of inherited abnormalities, such as Huntington's disease or muscular dystrophy, so appropriate advice can be given and precautions taken as needed. The use of DNA fingerprinting and genetic screening is fast in changing society and the way we treat illnesses, track down criminals and soon, identify the public. It is a science that has dramatically changed society and continues to make great contributions to health and science in all fields.

单选题Last week the seamen's strike led to the ______ closure of the entire vast dock are

单选题Speaker A: Do you mind if I sit here?Speaker B: ______.

单选题When we reached the station the train had not arrived yet; so we ______.

单选题_______students are there in your school, Tom?