选择题:Both of my brothers are now married,so I have two_

题目内容:
Both of my brothers are now married,so I have two_____. 
(A) sister-ins-law
(B) sisters-in-law
(C) sisters-in-law
(D) sister-in-law
参考答案:

89C51/S51单片机上电复位后,SP的内容应为( )(A)00H(B)07H(C)80H(D)F

89C51/S51单片机上电复位后,SP的内容应为( )(A)00H(B)07H(C)80H(D)FFH

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