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【单选题】
若要使用单片机的内部程序存储器,则()A.
EA接低电平
B.
EA接高电平
C.
PSEN接低电平
D.
PSEN接高电平
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A.
主谓双宾
B.
主系表
C.
主谓宾宾补
D.
主谓宾
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