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【简答题】
ISM构建结构模型分二个阶段:第一阶段根据问题建立____;第二阶段根据可达矩阵建立结构解析模型
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皮皮学刷刷变学霸
举一反三
【单选题】He is very grateful to the girl____ he often turns for help when he meets with difficulties.
A.
whom
B.
to whom
C.
to who
D.
which
【单选题】He feels it dangerous for a girl to be out late at night, so he won’t have his daughter _______ home late.
A.
arrive
B.
arriving
C.
toarrive
D.
arrived
【单选题】he heard a girl crying for help outside, he rushed out of the room.
A.
Before
B.
as soon as
C.
after
【判断题】Chris had to apply for a work as a stock worker, so he left the medical equipment with a girl, but the girl took it away! He ran after the girl who had stolen the equipment, finally, he took it back.
A.
正确
B.
错误
【简答题】泵与风机是指以（）为工作介质与能量载体的机械设备。
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