离子-电子法最适宜于配平水溶液中有介质参加的复杂反应。
A. 对
B. 错
Two compression bars of the same material and flexibility,they（）
A. The critical stress must be equal, and the critical pressure may not be equal
B. The critical stress is not necessarily equal, and the critical pressure must be equal
C. The critical stress and pressure must be equal
D. Critical stress and pressure are not necessarily equal
The flexibility of the compression bar intensively reflects which factors of the compression bar will affect the critical stress.
A. Length, constraints, section size and shape
B. Material, length and constraints
C. Material, constraints, section size and shape
D. Material, length, section size and shape
Which measure can not improve the stability of slender compression bar.
A. Increase the cross-sectional area of the compression bar
B. Increase the surface finish of the compression bar
C. Reduce the flexibility of the compression bar
D. Materials with large elastic modulus shall be selected
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