单项选择题

Machines that use hydraulic pressure including elevators, dentist chairs, and automobile brakes.()

A. exclude
B. excluding
C. include
D. are included

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单项选择题

We’re not bringing in millions of dollars, says a director of development. But we want to make sure the demand is there before we act to the project. ()

A. of
B. off
C. on
D. for

单项选择题

I always think of books with unutterable feelings, being deeply indebted to them, as I am, for the warmth they have brought me.()

A. preferred
B. mixed
C. profound
D. dissatisfied

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