当一套汽包水位测量装置因故障退出运行时,一般应在()内恢复,最多不能超过24小时。
A、4小时;
B、6小时;
C、8小时;
D、12小时。
参考答案:C
---What’s that noise?Is the water still running?
--- Oh, my god! I _______to turn it off after I brushed my teeth.[ ]
A. have forgotten
B. had forgotten
C. forgot
D. forget
下述哪一种是浅反射:()
A.角膜反射
B.提睾反射
C.肛门反射
D.腹壁反射
E.跖反射