(单选题)43: Tom didn’t come to class yesterday. He (_______) ill. A: must be B: should be C: must have been D: should have been ...

(单选题)37: The ship set out for the (_______) of the ocean depths. A: exploration B: explosion C: expose D: exposition ...

(单选题)31: He drives much _____ than he did three years ago. A: careful B: carefully C: more careful D: more carefully ...

(单选题)25: How long have you lived in London? ----- (_______) . A: I moved here from Paris B: My whole life C: I’ve worked here for almost 10 years D: I’ve never traveled there ...

(单选题)19: _____ carries data out to speakers and headphones, or back from a microphone. A: A graphics card B: A modem C: A network card D: A sound card ...

(单选题)13: It is reported that two cars (_______) into each other this morning on the highway, killing both driver and two passengers. A: crawled B: crouched C: pressed D: crashed ...

(单选题)7: A group of scientists are conducting a(_______)into the feasibility of cloning human beings. A: entrance B: research C: inquiry D: investigation ...

(单选题)1: —I always look out when crossing the street.—You’re right. You cannot be too______. A: nervous B: careful C: hurried D: careless ...

(判断题)48: 经济规模就是规模经济。（ ） A: 错误 B: 正确 ...

(判断题)42: 项目评估是银行防范资金风险的重要手段（ ）。 A: 错误 B: 正确 ...