A.with Mars the risks involved are much greater than any previous space ventures
B.in the case of Mars, the rewards of scientific exploration can be very high
C.in the case of Mars, much more research funds are needed than ever before
D.with Mars, scientists argue, the fundamental interests of science are at issue
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单选题 | The author of report is well ________ with the problems in the hospital because he has been working there for many years. | 查看答案 |
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单选题 | The little girl was ________ by the death of her dog since her affection for the pet had been real and deep. | 查看答案 |
单选题 | There claims to damages have not been convincingly ________. | 查看答案 |
单选题 | The winners of the football championship ran off the field carrying the silver cup ________. | 查看答案 |
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单选题 | About the future of the arts of reading the author feels ________. | 查看答案 |
单选题 | When the farmers visited the city the first time, they were ________ by its complicated traffic system. | 查看答案 |
单选题 | The ________ form childhood to adulthood is always critical time for everybody. | 查看答案 |
单选题 | He said that they had ________ been obliged to give up the scheme for lack of support. | 查看答案 |
单选题 | The author’s biggest concern is ________. | 查看答案 |
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单选题 | Each workday, the workers followed the same schedules and rarely ________ from this routine. | 查看答案 |
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单选题 | Please don’t ________ too much on the painful memories. Everything will be all right. | 查看答案 |
单选题 | The jobs of wildlife technicians and biologists seemed ________ to him, but one day he discovered their difference. | 查看答案 |
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