皮皮学，免费搜题
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【单选题】
在菌痢流行期间,重要的传染源是A.
急性期患者
B.
慢性患者和带菌者
C.
重症患者
D.
急性恢复期患者
E.
轻症患者
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举一反三
【单选题】Which of the following can be inferred from the passage?
A.
American manufacturing has always been in the leading position.
B.
Students have to command the knowledge in order to pass the test.
C.
America has figured out the ways of other countries to develop education.
D.
Gateway tests should be standardized for America to use.
【单选题】market where no single buyer or seller can influence the price is
A.
a buyer's market
B.
a seller's market
C.
a competitive market
D.
American market
【单选题】Paragraph 2 indicates that______.
A.
most of man's employment is from fishing
B.
man can always turn to fishing for employment
C.
forty percent of Chileans live on fishing boats or ships
D.
fishing has been the biggest industry in Newfoundland
【多选题】What determines the quantity of a good a seller can supply?
A.
price
B.
input price
C.
technology
D.
expectation determine the seller's supply of a good.
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