单项选择题

The passage implies that （） to have a man in a computer company to answer questions.

A．it is very helpful
B．it is very difficult
C．it is unnecessary
D．it is very safe

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热门试题

单项选择题

How does the author relate to sounds at night（）

A．He imagines sounds that do not exist.
B．He overstates quiet sounds.
C．He thinks taps should be turned off.
D．He believes it’s rather quiet at night.

填空题

A．value B．due C．clue D．continue