【判断题】.在膜式蒸发器的加热管内,液体沿管壁呈膜状流动,管内没有液层,故因液柱静压力而引起的温度差损失可忽略
【简答题】When buying things, people can choose by themselves there.
【单选题】静力试验的目的是检查起重设备的总强度和制动器的动作。试验的方法是加上最大工作荷重量,提升离地约()mm使其悬吊()min。
【判断题】各式起重机静力试验的目的是检查起重设备的总强度和机械结构是否良好。
【单选题】“集装箱”、“托盘”、“输送机”对应的英语术语是( )。
A.
Conveyor、Pallet、Container
B.
Conveyor、Tally、Container
C.
Container、Pallet、Conveyor
D.
Container、Conveyor、Tally
【简答题】When it comes to buying or renting, ______all play a role.
【单选题】Which of the following people would psychologists certainly consider to be shy?
A.
A person who prefers to study alone rather than spend time with friends.
B.
A person who is afraid to talk to an attractive person of the opposite sex.
C.
A person who isn't good at introducing themselves to new people.
D.
A person who feels exceptionally nervous when around unfamiliar people.
【单选题】()试验的目的是检查起重设备的总强度和控制器的动作。