空压机滴油杯常设在（）处。
A．低压级吸气管
B．低压级排气管
C．高压级吸气管
D．高压级排气管
参考答案：A
Do you think it is ___ good manners to hear others' conversations in ___curious manner? [ ]
A. the；a
B. /; /
C. /; a
D. the; the
若抛物线y=x2-2x-2的顶点为A，与y轴的交点为B，则过A，B两点的直线的解析式为______．
