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3.无人机飞行操作原则上要考取无人机驾驶证。

A. 对
B. 错

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4.无人机可以在机场上空随意飞行作业。

A. 对
B. 错

5.通过无人机进行地形测绘,获取的原始数据可以是影像照片,也可以是点云数据。

A. 对
B. 错

The brief history of English Teaching in China includes:

A phase of restoration (1978-1985 )
B. A phase of rapid development (1986-1992)
C. A phase of reform(1993-2000)
D. A phase of innovation( From 2000)

The 1st English school was set up by the ________Dynasty in 1862

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