严重主动脉瓣关闭不全者可听到()
A.心包叩击音
B.二尖瓣开瓣音
C.Austin-Flint杂音
D.喀喇音
E.Graham-steell杂音
参考答案:C
Hardly ____ the airport when the plane took off.
A.I had arrived at
B.had I arrived
C.had I reached
D.I had got to
请你说明若将此案提交仲裁会有怎样结果