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【单选题】
外免疫器官不包括A.
胸 腺
B.
淋巴结
C.
脾脏
D.
粘膜相关淋巴组织
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【简答题】The aircraft has two ____________.
【单选题】The Shengzhou VI aircraft carried two astronauts into____sky at 9:00 am on October 12, 2005 and the two astronauts will stay in _____space for five days.
A.
a; the
B.
the; 不填
C.
the; the
D.
a; 不填
【单选题】升起弓,合上闸后,LYSJ打板的原因除网压太低外,还有可能的是:( )
A.
116～113线间LYSJ的常闭联锁不良
B.
116～113线间两个串联的LYWY管开路或损坏
C.
LYSJ本身故障
D.
LYB本身故障
【单选题】The mother,along with her two daughters,________ from the sinking aircraft by a passing ship.
A.
have rescued
B.
have been rescued
C.
has rescued
D.
has been rescued
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