Contrary to early expectations his ratings ______, and he soon had audience of a million.
A. raised
B. soared
C. strengthened
D. intensified
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To convince juries of the high value of lost lives _____ one of the tasks he had to fulfill.
A. is
B. are
C. were
D. was
结构的静不定次数等于
A. 未知力的数目;
B. 支座反力的数目;
C. 支座反力的数目与平衡方程数目的差;
D. 未知力的数目与独立平衡方程数目的差。
所有支座反力均可由静力平衡方程确定的结构均为静定结构
A. 对
B. 错
超静定结构的相当系统和补充方程不是唯一的,但计算结果是唯一的
A. 对
B. 错