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【单选题】
直流电路中有 a 、 b 两点,已知 a 点电位为 V a =8V , b 点电位为 V b =6V ,则 ab 两点的电压 U ab 为( ) V 。A.
2
B.
14
C.
-2
D.
-14
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皮皮学刷刷变学霸
举一反三
【单选题】某场效应管的转移特性如下图所示,则该管是()。
A.
P沟道耗尽型型MOSFET
B.
N沟道耗尽型MOSFET
C.
P沟道増强型MOSFET
D.
N沟道増强型MOSFET
【单选题】Five other planets ______.
A.
always appear near the path of the sun
B.
are moving in a way more complicated than the earth does
C.
aren't moving around the sun as independently as the earth does
D.
are moving around the san at the same speed as the earth does
【单选题】All the other five planets______.
A.
always appear near the path of the sun
B.
are moving in a way more complicated than the earth does
C.
aren’t moving around the sun as independently as the earth does
D.
are moving around the sun at the same speed as the earth does
【简答题】a. moving around in a circle 循环的;环形的
【简答题】在曲柄摇杆机构中,最小传动角发生的位置在 。
【单选题】A He doesn't want to be his own boss. B. He hates getting outside. C. He dislikes moving around. D. He doesn't like to stay in the office.
A.
A He doesn't want to be his own boss.
B.
He hates getting outside.
C.
He dislikes moving around.
D.
He doesn't like to stay in the office.
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