(1)计算:-32+3×(-2011)0-(-12)-3+|tan60°-2|(

题型:解答题

问题:

(1)计算:-32+
3
×(-2011)0-(-
1
2
)-3+|tan60°-2|

(2)先化简再求值:(m-n)(m+n)-(m-n)2+2n2,其中|2m-1|+(n+1)2=0.
(3)解方程:
1-x
x-2
+2=
1
2-x
考点:解分式方程
题型:解答题

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A.5

B.6

C.7

D.4小题2:How much is it for piano lesson? It’s________.

A.$25

B.$20

C.$30

D.$45小题3:We can’t learn about______in the club.

A.drums

B.Bamboo flute

C.guitar

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A.$45

B.$20

C.$30

D.$25小题5:What does lessons mean in the ad( 广告   ) ?____________

A.教师

B.课本

C.课程

D.教室

题型:解答题

低碳钢的含碳量小于()%。

A、0.2;

B、0.25;

C、0.5;

D、0.6。

题型:解答题

吊索是用钢丝绳制作的,吊索拉力不仅与构件的重量有关,而且与吊索的水平夹角有关。在实际操作中不应使吊索与构件之间的夹角小于30°,一般为()。

A.30°~45°

B.45°~50°

C.45°~60°

D.45°~70°

题型:解答题

推进北部湾经济区发展,要积极探索建立()等新平台新机制。

A、中国-东盟区域金融合作中心

B、北部湾自由贸易试验区

C、区域性国际航运中心

D、海洋经济合作示范区

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属于设备及安装单位工程概算的是( )。

A.一般土建工程概算

B.弱电工程概算

C.特殊构筑物工程概算

D.工器具及生产家具购置费用概算

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