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【判断题】
对于金属船体的船体型表面是指船壳外板和上甲板的外表面,也就是不包括船体附件在内的设计表面。A.
正确
B.
错误
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皮皮学刷刷变学霸
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【简答题】如图，已知直线AB∥CD，∠1=50°，则∠2=（ ）°。
【简答题】如图，已知直线AB∥CD，∠1=50°，则∠2= ．
【单选题】Some doctors were sent to the front where medical workers were_____.
A.
in great need
B.
in desperate need of
C.
needed great
D.
needed in
【简答题】带电颗粒在电场中的泳动速度以____表示。
【单选题】Medical workers were sent to Ya’an soon ( )the earthquake happened.
A.
after
B.
before
C.
until
D.
for
【简答题】Some doctors were sent to the front where medical workers were __________. A. in great need B in desperate need of C needed great D needed in
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