将液压泵ENG1电门置于OFF位（） A.脱开EDP驱动 B.激活断流阀线圈，断开E

7 We _____ in four weeks time so Mr. Smith took me shopping for dress.

A were to marry with B were to be married C would marry to D were about to be married

作业空间指为了作业活动顺利进行所必备的空间，如作业通道、货品之间的安全间隙等。（）

下列不属于AIDS传播途径的是（）。

A.性交

B.母婴传播

C.输血

D.输液

E.注射毒品

正确开启气相色谱仪的程序是：（）。

牙体缺损修复时如腐质未去净或修复体边缘不密合使用一段时间后会产生继发性龋而出现

A．过敏性痛
B．自发性痛
C．咬合痛
D．龈炎
E．修复体松动