汽泵适用于输送()液体介质。
A.腐蚀性液体
B.粘稠
C.悬浮液
D.浑浊液
参考答案:B
Don't open the door ______?[ ]
A. aren't you
B. don't you
C. will you
简述强心苷抗心率失常的作用及其机制