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【单选题】
下列属于数字信号的是()A.
温度
B.
开关
C.
压力
D.
湿度
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举一反三
【单选题】The clouds had spread and nearly______the entire sky.
A.
separated
B.
hidden
C.
blocked
D.
covered
【单选题】听力原文：W: I'm going over to the recycling center this afternoon. Would you like me to take your old newspaper and paper bags along?. M: I do have a lot of papers and magazines down in the basement. Volu...
A.
Because she wants to read old newspapers.
B.
Because she wants to help the man to throw them away.
C.
Because she will go to the recycling center.
D.
Because she wants to sell them for some money.
【单选题】在确定换热介质的流程时,通常走管程的有:1高压流体;2蒸汽;3易结垢的流体;4腐蚀性流体;5粘度大的流体;6被冷却的流体
A.
①②③
B.
①③④
C.
③④⑥
D.
②⑤⑥
【单选题】听力原文：W: I'm going over to the recycling center this afternoon. Would you like me to take your old newspaper and paper bags along? M: I do have a lot of papers and magazines down on the basement. Volun...
A.
Paper towels, napkins, bags and boxes.
B.
Insulation for basements.
C.
Art book and other high-quality printed matter,
D.
Imitation wood.
【简答题】听小对话，选择图片 ( )1. What time is it? ( )2. Where would the woman like to go? ( )3. What are they talking about? ( )4. Which does the woman like? ( )5. Which is the man going to give ba...
【单选题】I would have gone to the concert,if I___time.
A.
had had
B.
have had
C.
had
D.
would have had
【单选题】在确定换热介质的流程时,1高压流体;2蒸汽;3易结垢的流体;4腐蚀性流体;5粘度大的流体;6被冷却的流体。通常走壳程的有
A.
①②③
B.
①②④⑤
C.
③④⑥
D.
②⑤⑥
【单选题】在WORD2003中，选择“文件”菜单下的“另存为”命令，可以将当前打开的文档另存为()。
A.
TXT文件类型
B.
PPT文件类型
C.
XLS文件类型
D.
BAT文档类型
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