钻孔灌注桩适用于()等土层。
A.软土
B.砂土
C.碎石
D.粘性土
E.岩石
参考答案:B, C, D, E
解析:钻孔灌注桩适用于粘性土、砂土、砾卵石、碎石、岩石等各类土层。
动词填空:
1. Let's _________ (go) to the Reading Club.
2. We cut some shapes __________ (make) the eyes and the sharp teeth.
3. He enjoys __________ (chat) with his friends after class.
4. Look! The boys ___________ (play) football on the playground.
5. She often goes to school without __________ (have) breakfast.
6. I will finish __________ (read) the book tomorrow.
7. Can you __________ (tell) me about your favourite festival, please?
8. _________ Alice _________ (have) classes on Sunday?
9. Thanks for __________ (tell) me about Halloween.
10. Do you want __________ (go) with us?
翻车机转子上的前梁内装有混凝土配重,其作用是什么?