【简答题】直线定线和 直线定向的区别。从使用目的和用途两个方面简单说明。
【单选题】—Isn’t Ann’s husband over there? —No, it _____ be him — I’m sure he doesn’t wear glasses.
【多选题】滑动轴承与轴之间配合紧密,易于实现液体动力摩擦,具有( )特点
【单选题】What can we know about the man?
A.
He doesn't want to talk about these things.
B.
He is not much different from other people.
C.
He is tired of doing these things.
【单选题】Bill likes playing ____ guitar, but he doesn’t like singing ____.
【简答题】Translate it into English: 小王,办公室有事找你。 ( Passive voice V.S. Active voice )