【单选题】下列哪个机构,主要实现由往复的摆动变为步进的转动:
【单选题】Will you go to the Great Wall if it fine Tomorrow.
【单选题】Will you go to the Great Wall if it ____ fine tomorrow?
【单选题】— How do you usually go to work? — If it is fine, I _____ on foot. [ ]
【单选题】船舶以极近距离驶过系泊船时,系泊船受驶过的船的作用以及发散兴波被岸壁反射后对船体的作用,会产生首摇,横摇,纵摇,纵荡,横荡,垂荡,关于这种影响,下列说法正确的是()。
【单选题】If you enjoy fine food and wines, you can go to ______ in Beijing World Trade Center.
【单选题】-Would you like out for a picnic tomorrow? -Yes, if the weather is fine tomorrow. [ ]