在中线上可以装设开关和熔丝。
参考答案：错
---Tom is always making so many mistakes in his English exercises!
--- Yeah. If he ________ more careful, he ________ fewer mistakes.
A．was; will make
B．is; would make
C．were; will make
D．were; would make
B．温度恒定时，物体的内能也可能改变
C．温度高的物体比温度低的物体内能大
D．吸收热量多的物体内能增量大
