As you have seen, the value of nation's currency is a ___ of its economy.
A、reaction
B、response
C、reflection
D、revelation
As you have seen, the value of nation's currency is a ___ of its economy.
A、reaction
B、response
C、reflection
D、revelation
The best choice for the title of the passage would be ______.
A.The Thirties in Art. Reaction and Rebellion
B.America in the Thirties: A Changing Time
C.Thomas Hart Benton and Regionalism
D.American Art. Appeal and Diversity
A、frequency factor
B、energy factor
C、catalysis factor
D、active factor
A.Arrhenius定律只适用于放热反应
B.Arrhenius定律只适用于吸热反应
C.Arrhenius定律只适用于理想气体参与的反应
D.Arrhenius定律只适用于不可逆反应
描述理想混悬液中沉降速度公式为
A、Fiek定律
B、Poiseuile
C、Stokes
D、Noyes-Whitney
E、Arrhenius
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