下列因素中,对人体的体温调节起着主要作用的气象条件是()。
A.气温和气湿
B.气流和热辐射
C.气温和热辐射
D.气流和气温
E.气湿和热辐射
参考答案:C
--- Daniel,why are you so late? We _______ you would be here an hour ago.
--- Sorry. I ________ know you were all here.
A.expect, don’t
B.expected; don’t
C.expected, didn’t
D.expect; didn’t
发票代开维护功能有什么作用?