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【判断题】
在不重复抽样的情况下，若调查的单位数为总体的20％，则所计算的抽样平均误差比重复抽样计算的抽样误差少20％。( )A.
正确
B.
错误
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【单选题】The word 'they' in paragraph 5 refers to ______ .
A.
practicality and rationality
B.
engineering and the liberal arts
C.
reality and noble ideals
D.
flexibility and a value system
【简答题】听力原文：Woman: Longside Taxis. Man: Morning. This is James Wright from Wentworth Engineering. I'd like to book a taxi, please. Woman: You're very busy today. That's the fourth one you've booked this morn...
【简答题】Jack Andraka from Maryland won the grand prize at the 2012 Intel International Science and Engineering Fair. It is the largest high school science competition in the world. The Maryland ager is th...
【单选题】What technique is needed to repair the defective cells with A-D-A gene?
A.
genetic engineering
B.
marrow transplantation
C.
radiological technique
D.
cell biology
【简答题】请简述浮钳盘式制动器优点。
【单选题】Which of the following is NOT mentioned as areas from applying AURA?
A.
Electronic engineering.
B.
Nuclear engineering.
C.
Mathematic and formal logic.
D.
Medical diagnosis.
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