触头对电器的工作性能、总体结构、尺寸有着决定性的影响。
参考答案：对
The author of the article believes that it is the test system, _____ teachers, that is responsible for the heavy
burden of the middle school students nowadays. [ ]
A. other than
B. or rather
C. rather than
D. more than
两性离子型的表面活性剂( ) A．16 B．17 C．18 D．19
