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【单选题】
Which of the following activities was the responsibility of the federal government in the nineteenth century?A.
Controlling of the manufacture of gunpowder.
B.
Determining the conditions under which individuals worked.
C.
Regulation of the supply of money.
D.
Inspection of new homes built on western lands.
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【单选题】Which of the following groups is meat? _____A．mutton, beef, chicken, fishB．mutton, beef, chicken
A.
42. Which of the following groups is meat? _____ A．mutton, beef, chicken, fish
B.
mutton, beef, chicken, pork
C.
egg, beef, chicken, fish
D.
mutton, beef, fish, pork
【单选题】If the price of chicken falls, then in the market for beef,
A.
the demand curve for beef shifts rightward.
B.
the demand curve for beef shifts leftward.
C.
there is a movement downward along the demand curve for beef.
D.
there is a movement upward along the demand curve for beef.
【单选题】某井已知垂直井深为2000m，该处的地层压力为26.46MPa，平衡该处地层所需的钻井液密度为（）g/cm 3 。
A.
1.15
B.
1.25
C.
1.35
D.
1.45
【单选题】—What kind of noodles would you like? —_______. [ ]
A.
Beef and tomatoes
B.
beef and tomato
C.
a large bowl
D.
Medium
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