将演示文稿以“网页类型的ppt”为名保存在“我的文档”文件夹下,保存类型为“网页”类型,并退出PowerPoint 2003程序。
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关于砌体强度设计值的调整系数ra,下列()项不正确。
A. 由于水泥砂浆和易性差,在验算用水泥砂浆砌筑的砌体时,取ra<1
B. 验算施工中房屋构件时,因为砂浆没有结硬,砌体未达到设计强度,取ra<1
C. 因为截面面积较小的砌体构件,局部碰损或缺陷对强度的影响较大,当无筋砌体截面面积A<0.3m2,ra<1
D. 考虑吊车对厂房的动力影响和柱受力的复杂性,验算有吊车房屋或跨度大于9m的房屋时,取ra<1
There are ______ morphemes in the word "uncomfortably".
A. three
B. four
C. five
D. six
The American literature around the Revolution of Independence experienced an age of
A. sin and predestination.
B. enlightenment.
C. reason and order.
D. philosophical movement.
______ is generally regarded as the beginning of modern world history.
A. The English Civil War
B. The American Civil War
C. The World War Ⅰ
D. The World War Ⅱ