单项选择题

A．Because they had to control the spacecraft by hand.
B．Because the capsule was too heavy.
C．Because the capsule failed to separate from the spacecraft.
D．Because they couldn"t land.
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单项选择题
A．He couldn t get through the door of the spacecraft.B．The pressure inside the suit became greater than outside.C．He couldn t leave the capsule.D．He was going to die of oxygen starvation.
A．He couldn"t get through the door of the spacecraft.
B．The pressure inside the suit became greater than outside.
C．He couldn"t leave the capsule.
D．He was going to die of oxygen starvation.
单项选择题
A．It has its origin in Taoism.B．Tea is served in large quantity.C．It is observed only in Japan.D．It has its origin in Buddhism.
A．It has its origin in Taoism.
B．Tea is served in large quantity.
C．It is observed only in Japan.
D．It has its origin in Buddhism.
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