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【单选题】
让一个10A直流电流和一个最大值为14.4的正弦交流电流分别通过两个阻值相同的电阻R,在相同的时间内,哪个电阻发热量大______。A.
直流电与交流电一样大
B.
直流电比交流电大
C.
交流电比直流电大
D.
由于频率未知,故无法比较
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反馈参考答案：
举一反三
【多选题】"是就是,否就否,除此之外.都是鬼话",这一观点的错误在于( )。
A.
它对否定的理解是孤立的、片面的
B.
它对肯定的理解是孤立的、片面的
C.
它否定了肯定与否定的对立统一关系
D.
它否认了事物发展的曲折性
E.
否认事物发展的多样性
【简答题】完形填空。 Many people think that twins are exactly (完全地) the same. 1 they are not. Ali and Alan are twin brothers. They look alike and 2 some ways they are the same. But in 3 ways they are very different....
【简答题】can show your work history.
【单选题】Which of the following would be classified as a liability?
A.
Dexter's business manufactures a product under licence. In 12 months' time the licence expires and Dexter will have to pay $50,000 for it to be renewed.
B.
Reckless purchased an investment 9 months ago for $120,000. The market for these investments has now fallen and Reckless's investment is valued at $90,000.
C.
Carter has estimated the tax charge on its profits for the year just ended as $165,000.
D.
Expansion is planning to invest in new machinery and has been quoted a price of $570,000.
【简答题】将骨髓穿刺针固定器固定在适当的长度上(胸骨穿刺约_____cm、髂骨穿刺约_____cm),用左手的拇指和示指固定穿刺部位,以右手持针向骨面垂直刺入(若为胸骨穿刺,针体略向腹部倾斜,针体与骨面成30-45度角)。
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