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【单选题】
The maximum magnification of many light microscopes is × 400. What does this mean?A.
Two objects can be distinguished as separate if they are 400 nm apart.
B.
The smallest object that can be seen has a diameter of 400 nm.
C.
Specimens can only be seen if they are made 400 times larger.
D.
The image produced by the microscope is up to 400 times larger than the specimen.
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【简答题】Then the speaker _____ the various factors leading to the present economic cr. (A) went after (C) went into (B) went for (D) went on
【简答题】A．Fixed B．Changed C．Flexible D．Various
【简答题】A．Fixed B．Changed C．Flexible D．Various
【单选题】Which of the following is true according to the text?
A.
Macroeconomics has undertaken evolutionary change.
B.
Markets may fail due to irrational exuberance.
C.
Mr. Akerlof won the Nobel Prize for behavioral economics.
D.
Economic crises occur with different manifestion.
【简答题】The Department is also deeply _____ in various improvement schemes. A. connected B. included C. involved D. implied
【简答题】A．Various political and economic viewpoints. B．Various viewpoints of tax simplification. C．All kinds of individual viewpoints. D．All kinds of complicated viewpoints.
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