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【单选题】
下列有关理想导体与空气的界面边界条件的说法中,正确的是( )。
A.
若导体表面分布有电荷，则在导体表面有电场的切向分量
B.
导体表面上电场的法向分量恒为零
C.
导体表面上磁场的法向分量恒为零
D.
若导体表面分布有电流，则在导体表面有磁场的法向分量
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参考答案：
举一反三
【单选题】From the description in the passage, we learn that
A.
monkeys are also susceptible to HIV.
B.
ADS has killed 25 million people in the last 25 years.
C.
vaccine has been developed to prevent AIDS.
D.
AIDS can be cured by drug cocktails.
查看完整题目与答案
【简答题】某制衣厂本周计划每日产100套西服，由于工人实行轮休，每日上班人数不一定相等，每日实际生产量与计划量相比情况如下表（增加的套数为正，减少的套数为负）： 星  期 一 二 三 四 五 增  减 +7 -3 +4 -2 -5 问： ①生产量最少的是星期几？生产量是多少？ ②本周实际生产总量是多少？
查看完整题目与答案
【单选题】From the text we can learn that .
A.
  the city of Urumqi has been officially built by Qing troops in 1763.
B.
  the city of Dihua has been  peacefully liberated by PLA soilders in 1949.
C.
  the province of Xinjiang was established in 1884 and the city of Urumqi was named Dihua as the capital city.
D.
all of the above
查看完整题目与答案
【单选题】From the description in the passage, we learn that
A.
monkeys are also susceptible to HIV.
B.
AIDS has killed 25 million people in the last 25 years.
C.
vaccine has been developed to prevent aids.
D.
AIDS can be cured by drug cocktails.
查看完整题目与答案
【简答题】证明：u=x 2 -y 2 和都是调和函数，但是u+iv不是解析函数．
查看完整题目与答案
【单选题】必须带宾语的词(即粘宾动词)是
A.
做、写、买、卖
B.
休息、玩耍、睡觉、交际
C.
来、去、走、跑
D.
姓、加以、给以、从事
查看完整题目与答案
【单选题】From the beginning of the passage, we learn that
A.
Virginius had no faith in Chivalry.
B.
Virginius was taught to esteem women.
C.
Victoria was born of an aristocrat family.
D.
Victoria's father was a planter.
查看完整题目与答案
【多选题】观看了视频,你对老师有什么印象?(答题指引:赞美之词越多越好,你懂得)
A.
平易近人
B.
人超好的
C.
很幽默
D.
有才
查看完整题目与答案
【判断题】函数 和 都调和函数,但 不是解析函数.
A.
正确
B.
错误
查看完整题目与答案
【单选题】From the conversation, we learn that
A.
the man has been to New Mexico many times.
B.
the woman and her sister live in New Mexico.
C.
Albuquerque is far away from the mountains.
D.
near Albuquerque there are high mountains,
查看完整题目与答案
相关题目：
【单选题】From the description in the passage, we learn that
A.
monkeys are also susceptible to HIV.
B.
ADS has killed 25 million people in the last 25 years.
C.
vaccine has been developed to prevent AIDS.
D.
AIDS can be cured by drug cocktails.
查看完整题目与答案
【简答题】某制衣厂本周计划每日产100套西服，由于工人实行轮休，每日上班人数不一定相等，每日实际生产量与计划量相比情况如下表（增加的套数为正，减少的套数为负）： 星  期 一 二 三 四 五 增  减 +7 -3 +4 -2 -5 问： ①生产量最少的是星期几？生产量是多少？ ②本周实际生产总量是多少？
查看完整题目与答案
【单选题】From the text we can learn that .
A.
  the city of Urumqi has been officially built by Qing troops in 1763.
B.
  the city of Dihua has been  peacefully liberated by PLA soilders in 1949.
C.
  the province of Xinjiang was established in 1884 and the city of Urumqi was named Dihua as the capital city.
D.
all of the above
查看完整题目与答案
【单选题】From the description in the passage, we learn that
A.
monkeys are also susceptible to HIV.
B.
AIDS has killed 25 million people in the last 25 years.
C.
vaccine has been developed to prevent aids.
D.
AIDS can be cured by drug cocktails.
查看完整题目与答案
【简答题】证明：u=x 2 -y 2 和都是调和函数，但是u+iv不是解析函数．
查看完整题目与答案
【单选题】必须带宾语的词(即粘宾动词)是
A.
做、写、买、卖
B.
休息、玩耍、睡觉、交际
C.
来、去、走、跑
D.
姓、加以、给以、从事
查看完整题目与答案
【单选题】From the beginning of the passage, we learn that
A.
Virginius had no faith in Chivalry.
B.
Virginius was taught to esteem women.
C.
Victoria was born of an aristocrat family.
D.
Victoria's father was a planter.
查看完整题目与答案
【多选题】观看了视频,你对老师有什么印象?(答题指引:赞美之词越多越好,你懂得)
A.
平易近人
B.
人超好的
C.
很幽默
D.
有才
查看完整题目与答案
【判断题】函数 和 都调和函数,但 不是解析函数.
A.
正确
B.
错误
查看完整题目与答案
【单选题】From the conversation, we learn that
A.
the man has been to New Mexico many times.
B.
the woman and her sister live in New Mexico.
C.
Albuquerque is far away from the mountains.
D.
near Albuquerque there are high mountains,
查看完整题目与答案
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