题目内容

My grandpa has to take several pills to _________ high blood pressure.

A. counteract
B. hamper
C. cause
D. offer

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In our reading, we should always __________ for idiomatic expressions.

A. alert
B. be alert
C. are alert
D. alertly

_______________ copper, there are many other metals which are good conductors.

According to
B. In addition to
C. Due to
D. In contrast to

With the development of rural tourism, some problems arise which __________ the sustainable development.

A. reduce
B. check
C. reflect
D. affect

She had managed to pull herself together and, to her credit, continued to look upon life as a _________ experience.

A. positive
B. objective
C. negative
D. effective

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