如图所示结构超静定次数为()。
A.3
B.4
C.5
D.6
参考答案:C
解析:
W=3m-2n-c-c0 =3×3-2×4-0-6=-5,故五次超静定。
Seeing the enemy, Gary was behaving as though nothing ______.[ ]
A. happened
B. had happened
C. would happen
D. was happening
按测验的表现可分为()。
A、能力测验
B、学绩测验
C、人格测验
D、文字测验
E、非文字测验