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【单选题】
肝性脑病的假性神经递质学说中的假性神经递质是指A.
苯乙胺和酪胺
B.
苯乙胺和苯乙醇胺
C.
酪胺和羟苯乙醇胺
D.
多巴胺和苯乙醇胺
E.
苯乙醇胺和羟苯乙醇胺
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【简答题】Today's Social Security programhas its roots in the Great Depression of the 1930s. With ____1____ unemployed,many Americans lived in poverty, and many elderly workers lost all theirpension funds when ...
【单选题】The American Congress consists of ______.
A.
the House of Representatives and the Senate.
B.
the Senate and the Cabinet
C.
the House of Commons and the House o f Lords
D.
the Senate and the Pr e sident
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【单选题】To review and assess achievements and summarize and exchange experience______the task of our present Congress.
A.
are
B.
is
C.
were
D.
have been
【单选题】Which of the following statements is NOT correct?When the War of Independence was over, ___.
A.
each new state had its own government.
B.
each new state made its own laws and handled all of its internal affairs.
C.
the national government was called the Congress with little power.
D.
the relationships between the states and the national government were clearly defined.
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