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【简答题】
证明平面Green公式 ,其中C为D的边界曲线,ds为弧微分。
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举一反三
【单选题】It may be inferred from the passage that______.
A.
the accident happened on a clear warm day
B.
the ditch was along a quiet country road
C.
the police helped Mr. Johnson get out of the ditch
D.
Mr. Johnson had a tender wife and was well attended
【简答题】Dad said it would be an unusual present,and he was quite right. He said,“Go to the telephone and call a ten-figure number,it must begin with 010.Got that—010?You can please yourself about the other se...
【单选题】铣床的行程开关SQ3的常开触头损坏,则工作台(        )
A.
不能向左移动
B.
不能向右移动
C.
不能向后、上移动
D.
不能向前、下移动
【单选题】– Ist die Blume nicht schön? - _________.
A.
Ja, aber sie ist sehr schön.
B.
Nein, sie ist sehr schön.
C.
Doch, sie ist sehr schön.
D.
Ja, sie ist sehr schön.
【单选题】-________ ist die Toilette? -Die Toilette ist hier links.
A.
was
B.
wo
C.
wie
【单选题】Ist die Blume nicht schön?
A.
Ja, aber sie ist sehr schön.
B.
Nein, sie ist sehr schön.
C.
Doch, sie ist sehr schön.
【单选题】前腭杆的厚度约为
A.
0.5mm
B.
1.0mm
C.
1.5mm
D.
2.0mm
E.
2.5mm
【单选题】It may be inferred from the passage that ______.
A.
the ditch was along a quiet country road
B.
the accident happened on a clear warm day
C.
the police helped Mr. Johnson get out of the ditch
D.
Mr. Johnson had a tender wife and was well attended
【单选题】It was rather clear that Mr. Christopher didn't want to tell them the truth, and he ______ made his answer vague.
A.
deliberately
B.
enthusiastically
C.
sincerely
D.
habitually
【单选题】DATE: April 22 FROM: Andrew Kim TO: Robert Dawson SUBJECT: Grand Opening Ceremony Hello Mr. Dawson, It was really pleased to talk to you on the phone earlier today. As I hope I made clear to you, it i...
A.
To arrange a phone meeting.
B.
To negotiate a time that works for everybody.
C.
To place an order for sound system services.
D.
To provide instructions about a sound system installation.
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