A．铁丝的比热变大
B．一定有物体向它传递了热量
C．一定有物体对它做了功
D．它的比热不发生变化
答案：D
When the bus is driving along a busy street, you should be careful not to your head
of the bus window. [ ]
A. stick; to
B. stick; out
C. stick; on
D. stick; up
烫阿胶是应用（）的方法。
A、砂烫
B、滑石烫
C、蛤粉烫
D、蒲黄烫
