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【单选题】
一对单体共聚时, r =0.1 , r=10 ,其共聚行为是( )?A.
理想共聚
B.
交替共聚
C.
恒比点共聚
D.
非理想共聚
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举一反三
【单选题】Which of the statement is true about the American president?
A.
The president heads the executive branch which takes the responsibility of carrying out the laws.
B.
The President has legislative power and is responsible for the foreign affairs of the country.
C.
The President has the power to appoint and dismiss supreme judges and members of congress.
D.
American national government always speak the same voices that of the president and that of Congress.
【单选题】Which American president witnessed the disintegration of the Soviet Union and the Westernization ofEast European countries?
A.
Carter.
B.
Reagan.
C.
Bush.
D.
Clinton.