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【简答题】
电阻元件的复阻抗为 ,电压与电流的相位差为 ψ u – ψ i = 。 电感元件的复阻抗为 ,电压与电流的相位差为 ψ u – ψ i = 。 电容元件的复阻抗为 ,电压与电流的相位差为 ψ u – ψ i = 。
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【单选题】My father _____ a large pizza. [     ]
A.
would likes
B.
would like
C.
would to like
D.
is like
【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】FX2N系列PLC中通用定时器分为100MS和()
A.
1000MS
B.
10MS
C.
1MS
D.
10000MS
【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】FX2N系列PLC中通用定时器编号为()
A.
T0~T256
B.
T0~T245
C.
T1~T256
D.
T1~T245
【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Word中,选择“文件”菜单下的“另存为”命令,可以将当前打开的文件另存为的文档
A.
是    (    )
B.
pdf
C.
ppt
D.
xls
E.
bat
【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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