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【单选题】
int x=3,y=4,z=5;则值为0的表达式是A.
x!=y+z>y-z
B.
x<=y+1< /div>
C.
y%z>=y-z
D.
x>y
E.
(x&&y)==(x||z)
F.
!(x>y)+(x!=z)||(x+y)&&(y-z)
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【简答题】置换作业时，置换介质的密度低于被置换介质时，从设备（ ）送人置换介质，由（ ）排出被置换介质，取样点宜放在设备的（ ）位置和可能成为死角的位置，确保置换彻底。
【单选题】With respect to a decrease in the price of a normal good, the income effect:
A.
and substitution effect both tend to increase consumption of the good
B.
is to decrease consumption of the good, and the substitution effect is to increase consumption of the good
C.
is to increase consumption of the good, and the substitution effect is to decrease consumption of the good
【单选题】The criterion used in IC analysis is______
A.
transformation
B.
conjoining
C.
grouping
D.
substitutability
【简答题】Look at this photo! I have two friends. The ____1_____ in yellow is Mike. He is thir __ 2 _ old . He 3 _ from the U.S.A. He 4 _ a round face, a big nose, a small mouth 5 _ small eyes. This girl ...
【简答题】完形填空。 Welcome to my QQ-zone (空间). This is a photo 1 my family. I have a 2 family. The middle-aged (中年的) man and woman are my parents. They are doctors. They work in the same 3 . The old man and the ol...
【简答题】置换作业前应制定置换方案，绘制置换流程图，若置换介质的密度大于被置换介质的密度时，应由设备或管道（ ）送入置换介质，由（ ）排出被置换介质，取样点宜在（ ）位置及宜产生死角的部位，确保置换彻底。
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