单选题I can think of nothing more ______ than arriving at the theater and discovering that I have left the tickets at home. A. vicious B. inviting C. vexatious D. immoral

单选题The crowd ______ into the hall and some had to stand outside. A. outgrew B, overthrew C. overpassed D. overflew

单选题I wish to have a talk with you, ______?

单选题In some California housing estates, a key alone is insufficient to get someone in the door; his or her voiceprint must also be ______.

单选题______ your request for a refund, we have referred that matter to our main office.

单选题Smog-choked Southern California A demands them. It's a car for people who never want to go to B a gas station again. But the fact is, for all the talk, selling C gas-less machines has been a D hard-sell .

单选题She felt dizzy and had to ______ something to steady herself. A. hold onto B. hold up C. hold forth D. hold down

单选题It is the first of several agreements the United States hopes to reach as it attempts to reduce labor costs by $5.8 billion and ______ bankruptcy.

单选题Sarah ______ articles to the New York Times from time to time.

单选题And yet here in front of our noses are deep-sea, carbon-based microbes ______ hellish, almost Venus-like conditions.

单选题We always lay in a large ______ of tinned food in winter in case we are snowed up. A. proportion B. storage C. provision D. supply

单选题The speed of communications today, as opposed to ______, has greatly altered the manner in which business is conducted.

单选题______ I like very much to do science, as a teacher I have to go over the students' papers and thesis.

单选题The United Nations Population Fund has picked October 31 as the day the world will be home to 7 billion people. For better and worse, it"s a milestone. And there will be more milestones ahead. Fourteen years from now, there are expected to be 8 billion people on the planet. Most of the growth will occur in the world"s poorer countries. Proportionally, Europe"s population will decline, while Africa"s will increase. At around the same time, India will overtake China as the most populous nation on Earth. The growing global population is just one side of the coin. A recent report from the World Health Organization signaled the seriousness of the human population explosion: more than 3 billion people—about half the world"s population—are malnourished. Never before have so many, or such a large proportion, of the world"s people been malnourished. And in a growing number of countries, there is a seemingly unstoppable march toward sub-replacement fertility, whereby each new generation is less populous than the previous one, and population aging. As a result of declining fertility and increasing longevity, the populations of more and more countries are aging rapidly. Between 9,005 and 2050, a rise in the population aged 60 years or over will be visible, whereas the number of children (persons under age 15) will decline slightly. Population aging represents, in one sense, a success story for mankind, but it also poses profound challenges to public institutions that must adapt to a changing age structure. The latest national census in China shows the number of elderly people in the country has jumped to more than 13.3 percent of the population, an increase of nearly 3 percentage points on the percentage from the previous census in 2000. A quarter of the country"s population will be over 65 by 2050, according to the National Population and Family Planning Commission. The growing number of elderly is a challenge that the government needs to tackle, we can"t rely on the ever-increasing population to support them or maintain the nation"s economic growth. Better solutions are needed, such as raising retirement ages to reflect the greater longevity and working capability of today"s older adults and making adjustments so pension programs are more accessible. It was heartening to hear the Ministry of Human Resources and Social Security spokesperson announced in Beijing on Tuesday that the government will take the retirement policy seriously and proactively. Shanghai began testing a flexible retirement system last October. Eligible employees in the private sector are allowed to postpone retirement until the age of 65 for women. Public servants, however, will continue to retire under the present system—age 60 for men and 55 for women.

单选题The professor can hardly find sufficient grounds ______ his argument in favour of the new theory.

单选题She was always in perfect sympathy with me ______ my love of nature.

单选题All the references she has obtained for her doctoral dissertation ______ about twenty items. A. make up for B. add up to C. come up with D. put up with