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【多选题】

The methods for space probe detect planets include: ____.

A.
Probe by orbiting
B.
Sampling and return
C.
Close observation by passing close
D.
On-site investigations
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举一反三

【单选题】Which one belongs to the payload of the "Chang'e-1"? ____.

A.
Star sensors
B.
Imaging spectrometer
C.
Attitude control engines
D.
Solar panels

【单选题】The core module of manned spacecraft is ____.

A.
The experiment module
B.
The orbital module
C.
The re-entry module
D.
The service module

【多选题】A spacecraft generally consists of several parts such as: ____.

A.
The re-entry module
B.
The orbital module
C.
The living module
D.
The service module

【单选题】横力弯曲梁的正应力在( )最大。

A.
中性轴处
B.
距中性轴1/2处
C.
距中性轴1/3处
D.
距中性轴最远处