单项选择题

Questions 19 to 22 are based on the conversation you have just heard.

A. A presentation they’re going to do.
B. A TV program the man is watching.
C. Visiting a good friend of theirs.
D. Studying for a coming test.
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单项选择题
A. How much its accuracy has improved recently. B. How reliable long-range forecasts are. C. How difficult it takes to make a good forecast. D. How the current forecast causes troubles.
A. How much its accuracy has improved recently.
B. How reliable long-range forecasts are.
C. How difficult it takes to make a good forecast.
D. How the current forecast causes troubles.
单项选择题
Bailyn argues that it is better for a company to employ more workers because ______.
A. it is easy to make excess staff redundant
B. crises occur if you are under-staffed
C. people are available to cover the contingencies
D. they’can project appositive image at work
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