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【判断题】
在AT89S52单片机中,为使准双向的I/O口工作在输入方式,必须事先预置为1。A.
正确
B.
错误
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【简答题】Which of the following are Eurodollars and which are not? a. A U.S. dollar deposit owned by a German corporation and held in Barclay’s Bank in London. b. A U.S. dollar deposit owned by German corporat...
【判断题】A corporation elected to be an S corporation must must be a U.S. corporation.
A.
正确
B.
错误
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