【单选题】-_____you swim? -Yes, I can.
【判断题】不准在实训车间打闹,不准随意攀登吊车、墙梯或者其它设备,不准在吊车吊运物体运行线上行走或停留。
【单选题】However weak your memory may be, you can make up for it by ______ what you want to remember, and repeating it over and over again.
【判断题】不准在车间打闹, 不准随意攀登吊车、 墙梯或者其它设备, 不准在吊车吊运物体运行线 上行走或停留。( )
【单选题】()“牵一发而动全身”,关系到我国改革大局。
【判断题】不准在实验室打闹,不准随意攀登吊车、墙梯或者其它设备,不准在吊车吊运物体运行线上行走或停留。
【单选题】_____the equipment before you leave, or you will be punished by our chemistry teacher. [ ]