题目内容

Many of the first settlers in Virginia died, and those who survived lived in _____ conditions.

A. wretched
B. wrecked
C. wild
D. sorrowful

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Contrary to early expectations his ratings ______, and he soon had audience of a million.

A. raised
B. soared
C. strengthened
D. intensified

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