某加工中心调用程序加工时，按循环启动，无动作，但显示器上却见坐标值在变化，产生原因可

用所给单词的适当形式填空。

1. Thanks a lot for______(give) me the book.

2. —Thank you for_______me to your party. But I call't accept (接受) your_______because

I have a lot of work to do.

    —That's a11 right. I also______Lin Tao and Jim to come. (invite)

3. Jim______(beginn)______(learn) Chinese two years ago.

4. The old man asked the policeman______(help) him.

5. We______(get) ready for a party now.

6. He is a______(luck) boy.

7. Thank you for______(help) me.

8. There are two basketball______(match) tonight.

9. Do you know that girl? She comes from an______(America) city.

10. He often goes______(fish) in the park.

焊接场地应预留安全通道并经常保持它的畅通。

上肢前臂大面积外伤可采用（）。

A、环形包扎法

B、螺旋反拆包扎法

C、蛇形包扎法

（）变电站基建工程厂内验收由地市公司运检部选派相关专业技术人员参加。

A.35kV

B.110（66）kV及以下

C.220kV

D.500（330）kV及以上

用碳当量公式可以估算任何钢种的淬硬倾向。