单项选择题

案例分析题 According to the writer, the main problem with the development of human cloning technology is that （）.

A．it may be out of human control
B．it has brought about few benefits so far
C．people still know little about it
D．people are afraid of such technology

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单项选择题

The writer is in favor of the view that man s intelligence is given to him （）.

A．neither at birth nor through environment
B．both at birth and through environment
C．through environment
D．at birth

单项选择题

Who are Mrs. Smith and Mrs. Jones mentioned in the first paragraph（）

A．Shop assistants.
B．Friends of the shop manager"s.
C．Two regular customers of the store.
D．Two regular customers of the supermarket.