题目内容

Fill the following animals in the following blanks.bee fox bat lamb rabbit tiger lion peacock1. as blind as a ______2. as brave as a ______3. as busy as a _______4. as cunning as a ____5. as fierce as a ______6. as gentle as a ______7. as proud as a ______8. as timid as a _______

查看答案
更多问题

半无限大物体的非稳态导热是非正规状态非稳态导热。

A. 对
B. 错

基坑开挖时,若采用表面直接排水,坑底将受到向上的动水力作用,发生()现象

A. 管涌
B. 基坑涌水
C. 流砂

为了防止管涌现象发生,可设置( )

A. 渗透层
B. 透水石
C. 反滤层

水在粗砂、砾石、卵石等透水上层中运动的状态为()。

A. 层流
B. 混流
C. 紊流

答案查题题库