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【单选题】
为探出焊缝中不同角度的缺陷,应采取的方法是( )。A.
提高检测频率
B.
修磨检测面
C.
用多种折射角度的探头
D.
以上都可以
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举一反三
【单选题】The postal rule is an exception to the principle that acceptance must be communicated. Which of the following is/are requirements for the postal rule to apply?(1)The letter must be received by the off...
A.
(1) and (2) only
B.
(2) and (3) only
C.
(2) only
D.
(1), (2) and (3)
【单选题】产品生命周期理论是美国哈佛大学教授( )1966年在《产品周期中的国际投资与国际贸易》首次提出。
A.
菲利普·科特勒
B.
迈克尔·波特
C.
雷蒙德·弗农
D.
彼得·德鲁克
【单选题】If Jenny is charged with petit theft of Fisher’s food, a misdemeanor, the court should rule
A.
Jenny is not guilty because she was acting under the direction of Joey.
B.
Jenny is guilty because an otherwise criminal act cannot be justified by threats of starvation.
C.
Jenny is not guilty because there was no “carrying away" of Fisher's food, and hence no completed theft crime was committed.
D.
Jenny is not guilty if a reasonable person would have regarded the theft as essential to avoid starvation.
【简答题】What is the rule for palyers to play table tennis?
【单选题】Consider a variation on the Koch curve. Start with a line segment of length L. The iteration rule is illustrated below, where each segment is replaced by five segments, each of length 1/3 the origin...
A.
(25 / 9) L
B.
(10 / 6) L
C.
(9 / 5) L
D.
(16 / 9) L
E.
(10 / 9) L
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