Students should__________certain standards of behaviors.
A. live up to
B. live in
C. live on
D. live through
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The author of the passage is probably__________ .
A. a teacher
B. a worker
C. a manager
D. a psychologist
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A. even
B. despite
C. even if
D. in spite of
The author would say that the expression of anger__________ .
A. takes the form. of uncontrolled fury in every situation
B. indicates one’S social status or image
C. varies from person to person
D. is a psychological challenge
H2(g)+2I(g)====2HI(g)为元反应。该反应的速率方程为______,反应级数为______。若其他条件不变,将容器体积增加为原来的2倍,则反应速率为原来的______。