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【判断题】
热继电器具有短路保护和过载保护。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】使运动的物体减速或使（）的物体不能运动，这种作用就叫（）。
【单选题】测试一个预测方法的性能,试验后经过统计得到如下数据: 则该方法的敏感性(sensitivity)、特异性(specificity)、准确率(accuracy)分别是多少?
A.
0.80, 0.50, 0.90
B.
0.67, 0.25, 0.30
C.
0.80, 0.60, 0.70
D.
0.67, 0.50, 0.60
【单选题】The author cites the examples of Nicole Kidman and Catherine Zeta-Jones in order to show that ______.
A.
Western women are more beautiful than Eastern women
B.
Hollywood movie stars are the most beautiful women in the world
C.
modern views on what is beautiful have been shaped by the Western image of beauty
D.
there is no such a thing as a perfect beauty
【简答题】Listen to some statements. Fill in the blanks with the correct numbers. 1. Prices on a Tokyo stock market rose more than 1_______ . The Nikkei closed at 2____ points. 2. The Dow Jones Industrial Avera...
【简答题】制动作用是人为地使运动的物体( )、( )或使( )。
【判断题】放射性思维。也叫扩散思维或求异思维。它是对同一问题探求不同的甚至是奇异答案的思维过程和思维方法。它不受过去知识的束缚,不受已有经验的影响,从各个不同甚至是不合常规的角度去思考问题。
A.
正确
B.
错误
【单选题】WASHINGTON, D.C. -- The FBI on Monday released new data about hate crimes. It showed that more hate crimes were carried out in the United States last year. There was an increase in incidents motivated...
A.
t o highlight the number of hate crimes involving viole nce
B.
to show that many hate crimes involved property destruction
C.
to highlight the number of hate crimes resulting in loss of life
D.
to show that most hate crimes involved the use of a weapon
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