气体腐蚀是指金属在()中的腐蚀。
A.潮湿气体
B.干燥气体
C.静止气体
D.高速流动气体
参考答案:B
—Would you like to play table tennis with me?
—I don't feel like it. I would rather at home and watch TV. [ ]
A.stay
B.to stay
C.staying
D.stayed
并联谐振的概念及特点是什么?