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【单选题】
己烯雌酚属于（ ）。A.
以雌甾烷为母体的雌激素
B.
以孕甾烷为母体的孕激素
C.
天然雌激素
D.
非甾体人工合成的雌激素
E.
甾体抗炎药
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【单选题】Which of the following is considered a macroeconomic question?
A.
What is the impact of competition on the profits of a business?
B.
How can one particular firm maximize profits?
C.
How can economic policy fight inflation?
D.
How does a family allocate income among various available goods and services?
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【简答题】阅读理解。 In a world where comparisons happen non-stop, it is difficult to look outside yourself and to ever be content with who you are. There's always someone who's a bit better. The only solution is to...
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