加油机按泵源不同可分为()加油机与潜油泵加油机。
A、叶片泵
B、齿轮泵
C、离心泵
D、自吸泵
参考答案:D
---Nancy, what classes are you taking this term?
---_______ I want to take two English courses, or maybe Spanish.
A.What’s up?
B.It’s none of your business.
C.I’ve no idea.
D.I’m not sure yet.
鹤虱的气味为()
A.气微,味微苦
B.气微,味极苦
C.气微香,味辛微苦
D.无臭,味辛辣
E.气特异,味微苦,嚼之有黏性