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【单选题】
For an ideal gas, the specific heat at constant pressure Cp is greater than the specific heat at constant volume Cv because theA.
gas does work on its environment when its pressure remains constant while its temperature is increased
B.
heat input per degree increase in temperature is the same in processes for which either the pressure or the volume is kept constant
C.
increase in the gas’s internal energy is greater when the pressure remains constant than when the volume remains constant
D.
pressure of the gas remains constant when its temperature remains constant
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举一反三
【判断题】The actual writing sequence is the front matter,the body and the back matter.
A.
正确
B.
错误
【简答题】A. or der B. doct or C. b or ing D. c or ner
【单选题】----- The tomato juice left a brown ______ on the front of your coat. ----- No matter . Cloth of this kind ________ easily .
A.
point ; washes
B.
spot ; washes
C.
point ;is washed
D.
spot ; is washed
【简答题】gêner -- _______
【简答题】cor-NER
【单选题】Two cars crashed in each other heavily in front of my car. I escaped death ______ a matter of inches.
A.
as
B.
at
C.
to
D.
by
【简答题】NER (nucleotide excision repair)
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