—How was your holiday?
—__________.[ ]
A. I went by train
B. Thanks
C. It was fun
答案:C
当()时,定压式扩音机与定阻扩音机一样也会损坏。
A.负载很轻
B.负载开路
C.负载较轻
D.严重超载
我国豆腐品种有北豆腐和南豆腐,它的区别之一是()
A.榨时间不同
B.原料不同
C.成分不同
D.颜色不同