单选题The senator was made to digress time and again from the main point of his speech because of the red ______ constantly ______ by his opponents in the audience.

单选题For companies, the threat of drive-by hacking seems set to grow as software programs assisting hackers proliferate on the Internet. A. obliterate B. multiply C. stack D. precipitate

单选题The realization of all the potential profits ______ depends on sufficient spending by employers, by the government or by those purchasing exports.

单选题A knowledge of history ______ us to deal with the vast range of problems confronting the contemporary world.

单选题When the plane was hit by the enemy"s bomb it made a ______ dive and plunged into the ocean.

单选题In some cultures the essence of magic is its traditional integrity; it can be efficient only if it has been ______ without loss from primeval times to the present practitioner.(2014年北京航空航天大学考博试题)

单选题They awoke to find the maid had left the remnants of dinner on the table.

单选题The massacre of innocent people cannot ever be condoned .(2002年中国社会科学院考博试题)

单选题When the savers want their money back they ______.

单选题Let us hope that ______ a nuclear war, the human race might still survive.

单选题In spite of ______reviews in the press, tile production of her play was almost certain oblivion by enthusiastic audiences whose acumen was greater than that of the critics.

单选题With its anti-terrorism campaign taking______over anything else, the government is extending its job and running in more affairs.(2003年北京大学考博试题)

单选题He got home two hours late and said he had been ______ in the office by business.

单选题This microscope ______ by 1,000 times the sample on the slides.

单选题It's a(n)______ that our team will win the game this time, for we have confidence as well as the ability.(2006年中国矿业大学考博试题)

单选题Because of its excellence in quality, for the last two years, Audi car has ______ Germany's Touting Car Championship.

单选题The nurse was filled with {{U}}remorse{{/U}} for not believing her.

单选题The government has promised to offer 10 million of emergency food aid to help______the famine in this region.

单选题Though not biologically related, friends are as "related" as fourth cousins, sharing about 1% of genes. That is【C1】______a study, published from the University of California and Yale University in the Proceedings of the National Academy of Sciences, has【C2】______. The study is a genome-wide analysis conducted【C3】______1, 932 unique subjects which【C4】______pairs of unrelated friends and unrelated strangers. The same people were used in both samples. While 1% may seem【C5】______, it is not so to a geneticist. As James Fowler, professor of medical genetics at UC San Diego, says, "Most people do not even know their fourth cousins but somehow manage to select as friends the people who【C6】______our kin. " The study【C7】______found that the genes for smell were something shared in friends but not genes for immunity . Why this similarity exists in smell genes is difficult to explain, for now,【C8】______, as the team suggests, it draws us to similar environments but there is more【C9】______it. There could be many mechanisms working together that【C10】______us in choosing genetically similar friends【C11】______"functional Kinship" of being friends with benefits! One of the remarkable findings of the study was the similar genes seem to be evolution faster than other genes studying. This could help【C12】______why human evolution picked pace in the last 30, 000 years, with social environment being a major【C13】______factor. The findings do not simply explain people's【C14】______to befriend those of similar【C15】______backgrounds, say the researchers. Though all the subjects were drawn from a population of European extraction, care was taken to see that all subjects, friends and strangers, were taken from the same population.

单选题Does it ______ to let little children play with fireworks?