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【多选题】
残余应力产生的原因有( )。A.
塑性变形效应
B.
里层金属弹性恢复
C.
表层金属的相变
D.
热变形
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反馈参考答案：
举一反三
【简答题】党的优良作风包括()、()、()。
【单选题】In order to meet the demands of modern logistics, () has become the brain to control the process?
A.
transportation
B.
information technology
C.
packing
D.
safety
【单选题】The buyer demands that the goods ____ within a week.
A.
must ship
B.
should ship
C.
must be shipped
D.
be shipped
【单选题】The buyer demands that the seller _________ the goods within a week.
A.
ship
B.
to ship
C.
would ship
D.
be shipping
【单选题】The buyer demands that the seller ( ) the goods within a week.
A.
should ship
B.
ship
C.
ships
D.
be shopping
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