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【多选题】
以下对于在弹性范围内受力的拉（压）杆的说法中，（）是合理的。A.
长度相同、受力相同的杆件，抗拉（压）刚度越大，轴向变形越小
B.
材料相同的杆件，正应力越大，轴向正应变也越大
C.
杆件受力相同，横截面面积相同但形状不同，其横截面上轴力相等
D.
只要所受外力相同，正应力也相同
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【单选题】If your car any attention during the first 12 months, take it to an authorised dealer.
A.
shall need
B.
should need
C.
would need
D.
will need
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【单选题】If your car any attention druing the first 12 months, take it to an authorised dealer.
A.
shall need
B.
should need
C.
would need
D.
will need
【单选题】If your car any attention during the first 12 months, take it to an authorized dealer.
A.
shall need
B.
should need
C.
would need
D.
will need
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