单项选择题

案例分析题 The following are all examples of the benefits from the cloning technology EXCEPT（）

A．treating heart attack victims
B．releasing people"s fears
C．treatment for infertility
D．curing cancer

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单项选择题
（4）处应填写（）

A．considered
B．considering
C．considerable
D．considerate
单项选择题
According to the passage, the two students failed in their study because of their （）.

A．shyness
B．pride
C．self-doubt
D．laziness
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