题目内容
The conventional view that the Mars' atmosphere is very poor because the planet lacks a magnetic field.
A. covers B. holds C. possesses D. contains
【答案】
B
【解析】略
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题目内容
The conventional view that the Mars' atmosphere is very poor because the planet lacks a magnetic field.
A. covers B. holds C. possesses D. contains
B
【解析】略