题目内容

Groups who try to persuade Congressmen to vote for or against a bill are knownas______________.

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The Supreme Court has the function of determining whether Congressional legislative or executive action violates the Constitution. This power is called______________.

The two major political parties are the Democratic Party,which is thought to be more liberal,and ________, which is believed to be more conservative.

混凝土强度等级是由()确定的。

A. fcu.k
B. fcp
C. fst
D. ftm

对于混凝土中水泥强度等级的选择，正确的是()

A. 水泥强度等级的选择应该与混凝土的设计强度等级相适应
B. 原则上低强度等级混凝土选用低强度等级的水泥
C. 高强度混凝土应选用强度等级高的水泥
D. 高强度混凝土亦可选用强度等级低的水泥