单项选择题

The author's purpose in writing this passage is to______.

A．explain how Kitty Litter is produced
B．describe the Mine Safety and Health Administration
C．show how tidy cats are
D．show that the government can sometimes be a nuisance

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热门试题

单项选择题

What docs the author mean by the last sentence of the passage

A．Cats sometimes seem to be amused by human antics.
B．People sometimes appear to be laughing at the antics of cats.
C．Some people think cats are laughing at the Kitty Litter Plant.
D．Some people think cats are laughing at the futility of fire fighting procedures.

单项选择题

What is the meaning of manhours” in Line 2, Paragraph 2

A．The time needed in finishing the work by one man.
B．The work done by one man in one hour.
C．The man needed in finishing the work in one hour.
D．The work done by one man.