14ZXB-70型斜式半调节叶片轴流泵，其中“14”表示泵的出水口直径为“14in”。
参考答案：对
Sixty percent of television viewers chose him as their ______ actor.
A．popular
B．favourable
C．favoured
D．favourite
Na2O·Al2O3·4SiO2熔体的桥氧数为（）。
A.1
B.2
C.3
D.4
