【简答题】汽油机和柴油机的区别是柴油机没有( )系统。
【单选题】The old man lost three sons in the accident. He died with a _____ heart.
【单选题】Tom asked the candy makers if they could make the chocolate easier ____ into small pieces. [ ]
【判断题】汽油机和柴油机的区别在于柴油机没有冷却系统。
【单选题】— I got to my office on time. —What if your car______.
【单选题】根据汽油机和柴油机的区别,下列说法正确的是( )
A.
汽油机汽缸顶部有一个火花塞,柴油机汽缸顶部是一个喷油嘴
B.
汽油机吸入的是空气,柴油机吸入的是空气和柴油的混台物
【单选题】He went to the payphone to make a call but the phone .
【判断题】通俗地说,产业是指主要业务或产品大体相同的企业类别的总称
【简答题】“毛重;净重;公重”,正确的翻译为( )。
【单选题】. The silence of the library ___ only by the sound of pages being turned over.