点火烧嘴一般采用（）。A.焦炉煤气 B.混合煤气 C.高炉煤气

二次投料法与一次投料法相比，所有的优点是（）

A、混凝土不易产生离析

B、强度提高

C、节约水泥

D、生产效率高

E、施工性好

德育管理

综合填空根据情境，写出一个语法上及语义上都正确的单词。

小题1: ---Have you heard that Jack bad an accident last night?

---Yes, but _______he wasn't badly hurt.

小题2:--I don't think it's right to treat Jimmy like this.

---I agree with you. He worked the hardest but got the _______money.

小题3:---Do you know David came first in the yesterday's English test?

---It's not _______.Everybody know sit.

小题4:--Who do you _______ most?

---Yao Ming is the hero in my heart.

小题5:--I'm so fat. What should I do?

---Why not join the ______Club? There are doctors telling you what to eat and what not to.

（）大大减少工件装夹、测量和机床的调整时间，减少工件的周转、搬运和存放时间。

A、数控车床；

B、数控铣床；

C、加工中心；

D、数控钻床。

纳税人满意度调查过程遵循纳税人自愿原则，保证调查结果（）。