单选题
公共英语五级
2011-08-19
The research at the University of Wisconsin is mentioned to show __________ 。
A．the isolation of stem cells
B．the effects of gene therapies
C．the advantages of human cloning
D．the limitations of tissue replacements
参考答案
A
答案解析
由第四段“．．．the University of Wisconsin managed to isolate stem cells．．”可知，虽然研究很困难，但这所大学还是在去年秋天设法分裂r干细胞。故应选A。
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A．The principle of gene therapy is applicable to that of clonin
B．The isolation of stem cells is too difficult to be feasibl
C．It is reasonable for all body instructions to be activate
D．Cloned animals will eventually take control of the worl
A．frustration
B．indifference
C．amazement
D．opposition
3
根据短文，回答题。
From this passage, we can learn that__________ 。
A．a robotic caterpillar can crawl by a pair of rubber rods
B．when a caterpillar moves, the magnetic field moves backwards along it
C．the environment couldn't influence a robotic caterpillar's guts, which are wrapped in a capsule
D．crawling is very stable and efficient, and when it moves, only a few elements are needed
From this passage, we can learn that__________ 。
A．a robotic caterpillar can crawl by a pair of rubber rods
B．when a caterpillar moves, the magnetic field moves backwards along it
C．the environment couldn't influence a robotic caterpillar's guts, which are wrapped in a capsule
D．crawling is very stable and efficient, and when it moves, only a few elements are needed