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【判断题】
C#4.0 引入动态特性 dynamicA.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】三相电路中,下列结论正确的是( ) 。
A.
负载作星形联接时，必须有中线
B.
负载作三角形联接时，线电流必为相电流的 倍
C.
负载作星形联接时，线电压必为相电压的 倍
D.
负载作星形联接时，线电流等于相电流
【简答题】某台频率为50HZ，12极的三相电动机其额定转差率为5%，求该电动机的额定转速是多少？
【单选题】The table is too small for a dinner party. It'll only seat four guests ______ comfort.
A.
for
B.
by
C.
in
D.
with
【简答题】书面表达。 Write a review of Kong Ximngdong's concert. Use the information given in the table as well as your own imagination. There should be four paragraphs,including the following four parts. 1)backgrou...
【简答题】“Where is Papa going with that ax (斧子)?” said Fern to her mother as they were setting the table for breakfast. “Out to the hoghouse,” replied Mrs. Arable. “Some pigs were born last night.” “I don’t se...
【单选题】李明拿了等底等高的圆锥形和圆柱形容器各一个，他将圆柱形容器装满水后，倒入圆锥形容器，当水全部倒完时，发现从装满水的圆锥形容器内溢出36.6毫升水。这时，圆锥形容器内有水 [ ]
A.
109.8毫升
B.
18.3毫升
C.
12.2毫升
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