如图所示,闭合开关后,要使L1和L2都发光,甲是__________表;乙是 ______表。
电流;电压
—I thought you wouldn't mind. — Well, as a matter of fact, I don't, but you ______ me first.
A. should ask B. should have askedC. must ask D. must have asked
HTTP协议的中文名称是()。