I have worked on three()Saturdays.
A.continuous
B.consistent
C.successive
D.regular
参考答案:C
手术室内的有害化学物质污染包括下列哪些()
A.微量麻醉废气
B.甲醛
C.戊二醛
D.苯酚
E.激光器所释放的毒气
流体的热胀性