单项选择题

案例分析题 Paragraph Two implies that in treating infertility, （）.

A．the percentage of successful treatments is very high when present methods are used
B．the present treatment is very cheap
C．the cloning technology costs less time and money in treating infertility
D．the cloning technology is more suitable for treating infertility than leukemia

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单项选择题
The main purpose of the passage is to show （）.

A．how the supermarket has replaced the old general store
B．how the old-fashioned general store is fast disappearing
C．how supermarket managers run modern supermarkets
D．how supermarket managers deal with problems every morning
单项选择题
（3）处应填写（）

A．a number of
B．the number of
C．the amount of
D．an amount of
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