硅酸盐水泥的28d抗折强度应( )。A.≥6.5B.≥7.0C.≥7.5D.≥8.

题型:单项选择题

问题:

硅酸盐水泥的28d抗折强度应( )。

A.≥6.5
B.≥7.0
C.≥7.5
D.≥8.0

考点:材料员建筑工程胶凝材料
题型:单项选择题

未经盘车便启动空冷风机,比较容易受损坏的部件是()。

A.皮带和轴承

B.皮带和电机

C.风叶和轴承

D.风叶和电机

题型:单项选择题

一个朝着某方向做直线运动的物体,在时间t内的平均速度是v,紧接着内的平均速度是,则物体在整个过程中的平均速度是 [ ]

A.v

B.v

C.v

D.v

题型:单项选择题

脊髓损伤患者一般要经历的心理过程,不包括()。

A.休克期

B.否认期

C.依赖期

D.淡漠期

E.抑郁或焦虑反应期

题型:单项选择题

盘状红斑狼疮的组织病理学特点不包括()

A.基底层液化

B.胶原增多

C.毛囊角栓

D.淋巴细胞浸润

E.棘细胞松解

题型:单项选择题


Statistics from China (1) be mind boggling: 1.2 billion (2) , 1.73 trillion cigarettes smoked in a year, 7,000 different (3) of woody plants. But amid all of these staggering sums, one factoid stands (4) for both its audacious size and for what it says about China’s future: there are 630 million Chinese under the age of 24. That’s a lot of (5) energy to burn. Materialism may be the (6) preoccupation among China’s young people these days, but just beneath the surface lies a feeling (7) wounded nationalist pride and an ever-deepening spiritual hunger. It isn’t clear where China’s young people are headed. But this is a generation that, by its (8) size and certain talents, will (9) the world’s destiny.
Here’s another sobering statistic: this is Terry McCarthy’s 22nd, and final, cover (10) for TIME Asia-he’s leaving the region (11) three years to become TIME’s Los Angeles (12) chief. McCarthy, who has indefatigably crisscrossed Asia out of his twin bases of Hong Kong and Shanghai, was the main driver (13) this week’s superb special report on young China. He developed the story list, guided much (14) the reporting
and wrote some of the articles. All (15) planning a swank black-tie masked ball last weekend in Shanghai. "I was (16) by the willingness of individual Chinese to write for us or talk about their (17) ," McCarthy says about the special (18) . "These are the guys (19) are going to be running the country in 20 (20) ." If we’re lucky, McCarthy will be back in the region long before then.

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