单项选择题

The Xinjiang Airlines serve passengers and customers in the southeast of China only.()

A. serves
B. to serve
C. serving
D. service

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Some people think more of animals than will of children.()

A. they have
B. they had
C. they are
D. they do
单项选择题
These data will be of considerable use for identifying and analyzing environmental degradation, and than crafting workable solutions.()

A. /
B. from
C. with
D. to
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