（）除锈方法劳动强度大，生产效率低，清除质量差，一般难于全面

搜题请搜索小程序“爱下问搜题”

问题单项选择题

（）除锈方法劳动强度大，生产效率低，清除质量差，一般难于全面彻底地清除。

A、人工除锈

B、喷砂

C、工具除锈

D、风动工具

答案

参考答案：A

填空题

用所给动词的适当形式填空。

1. My sister _____________ (go) to the supermarket every Sunday.

2. We _____________ (do not) watch TV last night.

3. Listen! The girl in the next room _____________ (sing) an English song.

4. _____________ he _____________ (jump) higher than David?

5. He _____________ (like) _____________ (drink) tea. How he would like _____________ (drink) a cup

of tea.

6. What about _____________ (read) some newspaper? Sorry, I don't have time _____________ (read) it.

单项选择题

关于胎儿在子宫内的姿势，哪项是错误的

A．颏部贴近胸壁

B．胎头俯屈

C．整个胎体呈椭圆形

D．脊柱直伸

E．四肢屈曲交叉于胸腹前