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【单选题】
普通二极管的应用范围很广,主要用它的A.
负阻特性
B.
非线性
C.
双向导电性
D.
单向导电性
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【单选题】如图A-8所示，A灯与B灯电阻相同，当电阻器滑动片向下滑动时，（）。
A.
A灯变亮、B灯变亮；
B.
A灯变暗、B灯变亮；
C.
A灯变暗、B灯变暗；
D.
A灯变亮、B灯变暗。
【单选题】It can be inferred from the passage that ______.
A.
other referees were showing great interest in following Savill' s example
B.
the audiences were greatly impressed by Savili' s sympathy in the game
C.
a game will be stopped if the ball strikes the referee any time during the game
D.
it was Savill' s 'sense of humor' that made him suspended by the association
【单选题】At the meeting both sides exchanged their views on a wide scope of topics they were interested in.
A.
extent
B.
number
C.
collection
D.
range
【单选题】33GXGZ．靠近线路堆放道砟、片石、砂子等线桥用料，钢轨顶面外侧到坡角的水平距离不得少于（..）。
A.
（A）500mm
B.
（B）800mm
C.
（C）810mm
D.
（D）860mm
【简答题】NOT all memories are sweet. Some people spend all their lives trying to forget bad experiences. Violence and traffic accidents can leave people with terrible physical and emotional scars. Often they r...
【简答题】音乐课程的性质主要体现在 、 、 三个方面。
【简答题】阅读理解。 NOT all memories are sweet. Some people spend all their lives trying to forget bad experiences. Violence and traffic accidents can leave people with terrible physical and emotional scars. Often ...
【简答题】Buffalo chips were found to burn evenly, hotly, and cleanly, with little smoke and, interestingly, no odor.
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