题目内容
(请给出正确答案)
[主观题]
The categories must be chosen before examination of the data and should not be selected to maximize group differences. True or false?
提问人:网友yifandu
发布时间:2022-01-07
In the face of all these difficulties,we’re not discouraged and________good spirits. |
[ ] |
A.keep up B.go up C.hold up D.pick up |
A、The use of non-animal methods over animal methods.
B、More information obtained from fewer animals.
C、The alleviation of potential pain, suffering or distress.
D、More use of substances that may never be used for anything useful.
A、circular
B、triangle
C、rectangle
D、Square
A、Temperature
B、air circulation
C、air composition
D、all above
A、r
B、x
C、a
D、b
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