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【单选题】
下列关于剪应力互等定理的论述中正确的是（ ）A.
剪应力互等定理仅适用于纯剪切的情况
B.
剪应力互等定理适用于各种受力杆件
C.
剪应力互等定理仅适用于弹性范围
D.
剪应力互等定理与材料的性能有关
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反馈参考答案：
举一反三
【单选题】．-----Tommy is planning to buy a car. ----I know .By next month, he______ enough for a used one.
A.
saves
B.
saved
C.
will save
D.
will have saved
【单选题】The next thing he saw was smoke ________ from behind the house.
A.
rose
B.
to rise
C.
rising
D.
risen
【单选题】The next thing he saw was smoke from behind the house.
A.
rose
B.
rising
C.
to rise
D.
risen
【简答题】面对我国营养不良现状公共营养师应该树立治疗为主的观念。（ ）
【单选题】The behavior. sensor and software system built in a phone
A.
could help store messages.
B.
could send messages instantly.
C.
could tell when it is wise to interrupt you.
D.
could identify important phone calls.
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