全球通品牌的传播口号是什么？（）
A.未来在我手中
B.我的地盘，听我的
C.轻松由我
D.我能
参考答案：A
The secretary and principal (校长) _______ at the meeting now. [ ]
A. are speaking
B. is speaking
C. were making a speech
D. have a speech
热过载继电器是（）控制电路中的。
