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【单选题】
如图所示,空气中有一无限长金属薄壁圆筒,在表面上沿圆周方向均匀地流着一层随时间变化的面电流 i ( t ) ,则A.
圆筒内均匀地分布着变化磁场和变化电场
B.
任意时刻通过圆筒内假想的任一球面的磁通量和电通量均为零
C.
沿圆筒外任意闭合环路上磁感强度的环流不为零
D.
沿圆筒内任意闭合环路上电场强度的环流为零
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【单选题】我国《民法总则》规定,无民事行为能力人或者限制民事行为能力人对其法定代理人请求权的诉讼时效期间,起算点为:
A.
知道被侵权之日起算
B.
法定代理中止之日起算
C.
应当知道被侵权之日起算
D.
法定代理终止之日起算
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A.
exceed
B.
overtake
C.
lag
D.
surpass
【简答题】用所给的单词适当的形式填空(5%) 小题1:It’s only six ________(minute)to walk from my home to the park. 小题2:It ________(take)me half an hour to get to school by bike. 小题3:Most of ________(they) often go to work by trai...
【简答题】Put the word in brackets in the correct place in the sentence. ► It’s six kilometres to the next town. (only) It’s only six kilometres to the next town. 1 He’s 75 and he plays tennis, (still) __...
【简答题】是态度改变的先决条件。
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