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【简答题】
简述中国发展的世界地位和目前所处的发展阶段。
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【简答题】—Did Peter turn up? —No, he ____ ___________(change) his mind after a phone call at the last minute. 17. Hardly had I got home when the rain _______________(pour) down. 18. -- Did you enjoy the party?...
【单选题】如下图所示,有一固定的且通有电流为 I 1 的一无限长直导线,其附近放置一通有电流为 I 2 的圆环导线,两者在同一平面,圆环开始时静止。以下说法正确的是:
A.
圆环将在安培力的作用下向上运动；
B.
圆环将在安培力的作用下向下运动；
C.
圆环将在安培力的作用下向左运动；
D.
圆环将在安培力的作用下向右运动；
【简答题】如下图所示,一无限长直导线通有电流 I ,另有一与该导线共面并垂直的金属棒 AB ,以速度 v 平行于长直导线做匀速运动,则棒上电势高的一端是 ( ) 端
【单选题】.It is the third time that our water supply _______during the day.
A.
was cut out
B.
has been cut off
C.
has been call off
D.
was cut down
【简答题】UUL Co is a public water supply company which was privatised a number of years ago. As the deputy Finance Director you are reviewing the draft financial statements which contain the following statemen...
【简答题】n We can’t use all of fresh water __________, because some of it is ___ ___ _____ ___ icebergs and glaciers. ______ _____, some of it has been __________. n Our need for water is _________ rapidly—alm...
【单选题】Our water supply has been ( ) again. (我们的供水又被切断了。)
A.
cut out
B.
cut through
C.
cut off
D.
cut short
【简答题】Our water supply has been ________ for three days. (停供)
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