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【简答题】
如题图所示的绝缘细线上均匀分布着线密度为 的正电荷,两直导线的长度和半圆环的半径都等于 .试求环中心 点处的电势.
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举一反三
【单选题】James had often been _____ his older brother Jack.
A.
taken for
B.
known for
C.
famous for;
D.
mistaken for
【单选题】从键盘上输入18，执行下列代码程序运行结果是___________number=eval(input("Enter an integer:")if number%2==0 and number%3==0： print(number,"is divisible by 2 and 3")if number%2==0 or number%3==0： print(number,"is divisible ...
A.
18 is divisible by 2 and 3
B.
18 is divisible by 2 or 3
C.
18 is divisible by 2 and 3 18 is divisible by 2 or 3
D.
18 is divisible by 2 or 3,but not both
E.
18 is divisible by 2 and 3 18 is divisible by 2 or 3 18 is divisible by 2 or 3,but not both
【简答题】Questions 8-10 Listen to the last part of the recording and complete the form. Write no more than two words or a number 18 曲目 18.mp3: Name: (8) Victoria ____________ Age: 19 Address: (9) 57, _________...
【简答题】在SVM领域中，margin的含义是：
【简答题】铬酸钾指示剂法中,终点时,生成 颜色 沉淀。
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