审计档案是在审计监督专业活动中形成的。
参考答案：对
（1）导线受到的安培力大小和方向
（2）从静止开始运动2s，导线的末速度大小
用所给单词的正确形式填空。
1. The noise of the _______ (traffic) kept me awake.
2. Chongqing is one of the _______(big) cities in China.
3. The number of population _______ (increasing) quickly.
4. The population of this city _______ (be) not large.
5. The city has two ________ (million) people.
of the _______
(big) cities in China.
not large.