【简答题】视频监控系统按其工作原理可分为: _ _ 、 _ _ 、 _ _ 和 _ 四个部分。
【简答题】改错:Didn’t you see the doctor I nodded just now?
【简答题】视频监控系统按其工作原理可分为: 、 、 _______ _和 四个部分。
【简答题】视频监控系统按其工作原理可分为: ____________、_________、____________和____________四个部分。
【单选题】—Didn’t you see the sign, sir? Smoking is not allowed here! — . [ ]
【简答题】图板用来铺放和固定图纸,选择相对平整的面作为 ( ),丁字尺沿着上下移动的边叫 ( )。
【单选题】didn’t you see the man_______?
B.
Whom I nodded just now
C.
I nodded to him just now
【单选题】6 Didn’t you see the man ___?
B.
whom I nodded just now
C.
I nodded to him just now
【单选题】At the party, you oughtn’t to_____the joke. Didn’t you see the hostess was a bit______?
B.
have told;embarrassing
D.
be telling;embarrassing