He died and ______ nothing.
A. leave
B. leaves
C. left
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Today is ______ colder than yesterday.
A. much
B. more
C. many
采用控制应力法冷拉钢筋,HRB400级钢筋的控制应力为( )N/mm2。
A. 370
B. 450
C. 490
D. 580
钢筋是通长计算的,施工时如遇洞口时,在距洞口边25mm处断开。钢筋搭接长度为( )d(d为钢筋直径)。
A. 10
B. 20
C. 30
D. 35
— Must I go there at nine— No, you
A. must
B. mustn't
C. needn't