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【单选题】
Which of the following is NOT true, according to the passage you have just heard
A.
Hamburger is very popular in America.
B.
Hamburger was very popular in America.
C.
Hamburger was not very popular in America.
D.
Hamburger has been very popular in Americ
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参考解析：
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举一反三
【单选题】People who wait for all conditions to be perfect before acting, ______
A.
never have acted
B.
never acting
C.
never to act
D.
never act
【单选题】Baby boom' refers to the great increase of birth rate between ______.
A.
1946 and 1964
B.
1860 and 1890
C.
1920 and 1935
D.
1845 and 1854
【单选题】The cream Martin gives Julia can help her in all of the following EXCEPT______
A.
removing dirt and oil
B.
stimulating circulation
C.
smoothing out the skin
D.
getting rid of dead cells
【单选题】有关致密颗粒的描述不正确的是
A.
比α颗粒小
B.
每个血小板中有4～8个
C.
其高电子密度是由于含有较多的钙
D.
颗粒内ATP与ADP比例为2
E.
血小板活化时会释放致密颗粒中的ADP
【单选题】某企业与海外公司2009年签订一份金额为500万美元的采购合同，并按规定缴纳了印花，2010年修改该合同，将金额增加为721万美元，修改凭证当日的美元与人民币的汇率为7.56，当月1日美元与人民币的汇率为7.58，则该企业2010年应缴纳的印花税为人民币( )元。
A.
5012.30
B.
5480.90
C.
5480.32
D.
5012.28