单项选择题

A、3
B、2
C、1
D、0
E、4

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单项选择题

On the assumption of uniformity, the _______of a component is assumed to be the same everywhere.()
A、Displacement
B、Stress
C、Strain
D、Modulus of elasticity

单项选择题

I can write as many keywords as I want.
A、正确
B、错误