单项选择题

The editors said they must report to the world how Beijing has（）pollution and improved the quality of the environment.

A. cut up
B. cut off
C. cut down
D. cut out

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单项选择题
The world-famous British Museum which houses a （）collection of valuable books, paintings, works of arts, etc. attracts millions of visitors every year.

A. immersible
B. miscellaneous
C. overwhelming
D. unified
单项选择题
The nation-wide economic slowdown worsened the （）between employer and employee.

A. connection
B. relationship
C. association
D. acquaintance
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