不锈钢按其金相组织分类,包括()。 A.奥氏体不锈钢 B.耐酸碱腐蚀不锈钢 C.耐高

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问题:

不锈钢按其金相组织分类,包括()。

A.奥氏体不锈钢

B.耐酸碱腐蚀不锈钢

C.耐高温不锈钢

D.马氏体不锈钢

考点:建筑类建设工程技术与计量(安装)建设工程技术与计量(安装工程部分)
题型:多项选择题

完形填空(共10小题,每小题1分,满分10分)

For middle school students in China, it's really easy to spend money.There are so___1__ things,such as the latest clothes, video games, expensive handbags.

The habit of spending money like most bad habits, is ___2____ to break. When I was a middle school student, I __3___ lots of money on things. I _4__ I was very cool at that time. But now I feel very sorry because I ___5__ so much money.

When something is the latest and greatest, you want it at once because it’s new and you don’t want to wait ___6__ it’s old. The __7___ is that the latest things usually cost a lot of money. But once you own the things, they go out of fashion very__8__. How many things do you have in your bedroom? How often do you __9__ them?

The expensive things are not the coolest ones at all. It’s not necessary __10____ them.

小题1:A. little       B. much           C. many

小题2:A. easy         B. good           C. hard

小题3:A. cost        B.spent           C. took

小题4:A. realized     B. thought         C. wondered

小题5:A. wasted       B. saved           C. paid

小题6:A. as          B. before         C. till

小题7:A. reason       B. happiness       C. problem

小题8:A. quickly      B.difficultly      C. slowly

小题9:A. watch       B. use            C. move

小题10:A. to buy      B. buy             C.buying

题型:多项选择题

所有的鸟在产卵前都要筑巢,产卵后要孵卵。                               ( )

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物体在斜面上匀速下滑,在四个受力示意图中,哪个物体受力示意图是正确的

A.

B.
C.
D.
题型:多项选择题

“贸易方式”栏应填()。

A.进料对口

B.进料加工

C.外资设备物品

D.来料加工

题型:多项选择题

金属用气割进行切割需满足什么条件?

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