题目内容

The Great Hall is bright and spacious.

A. pleasant
B. clean
C. peaceful
D. large

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A lot of changes have occurred in China in the last 30 years.

A. happened
B. raised
C. appeared
D. disappeared

This kind of material was occasionally used in making shoes.

A. never
B. rarely
C. often
D. usually

涎腺的腺泡分为____、____和___。

唇裂是___和____联合或部分联合。

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