题目内容

组织对直升机巡检发现的缺陷进行核实，及时开展消缺，定期开展直升机巡检缺陷分析（）。

A. 国网运检部
B. 国网安质部
C. 省公司运检部
D. 市公司运检部

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在《架空输电线路无人直升机巡检系统》中，无人直升机巡检系统的导航定位偏差水平方向不大于()

A. 1
B. 2
C. 3
D. 4

After dinner, he often listens to music and __________ books.

A. see
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C. reads
D. looks

Tony is not so clever as Judy, but he works ______than she

A. hard
B. harder
C. hardest
D. the hardest

The plane ______ when we got to the airport.

A. had taken off
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C. will take off
D. is taking off