单项选择题


Approximately, how many laborers and artisans have worked on the project

A． 19.
B． 50.
C． 350.
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单项选择题
The American sleep debt (Line 1, Para. 3) is the result of ______.
A．the traditional misconception have about sleep
B．the new sleep policy of the Clinton Administration
C．the rapid development of American industry
D．the Americans’ worry about the danger of sleepness
单项选择题
When the man told them the times of meals at the hotel. Mrs. Smith felt ______.
A．disappointed
B．tired
C．pleased
D．satisfied
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