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按照规范要求，不同材料基体交接处表面的抹灰，应采取防止开裂的加强措施，当采用加强网时，加强网与各基体的搭接宽度不应小于( )mm。

A.50
B.80
C.100
D.120
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Throughout history, more than a few famous people were vegetarians. For example, Pythagoras, the famous Greek mathematician who lived in the fifth century B. C., kept to a wimple diet of bread, honey, and vegetables. Plato and Aristotle were also vegetarians, The poet Percy Bysshe Shelley became a convert to vegetarianism at twenty-one and later wrote a pamphlet in its defense. And Count Tolstoi, the Russian author famous for War and Peace, not only ate no animals; he would eat no eggs. 
A、Most authors have been vegetarians.
B、Some vegetarians eat eggs.
C、Most vegetarians are men.
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当钢筋混凝土柱截面较小，配筋又很密集时，宜采用( )。
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B.表面振捣器
C.附着式振捣器
D.振动台
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下列磷脂中，合成代谢过程需进行甲基化的是（　　）。
A.磷脂酰乙醇胺
B.磷脂酰胆碱
C.磷脂酰丝氨酸
D.磷脂酸
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