钢制电缆桥架主结构设计厚度大于()时,定额人工、机械应乘以系数1.2。
A.3mm
B.2.5mm
C.3.5mm
D.4mm
参考答案:A
Do you know how to learn English well as _________ second language?
A.a
B.an
C.the
D./
It soon became clear that the Labour Party had,for the first time in its history,won its third election ______.
A.in a hurry
B.in a way
C.in other words
D.in a row