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【单选题】
MEGA16单片机的PD2与INT0是复用的，但是单片机上电复位以后，默认的是PD2的普通I/O管脚功能的原因是（ ）A.
GICR寄存器中INT0位在单片机复位的状态下是“0”
B.
GICR寄存器中INT0位在单片机复位的状态下是“1”
C.
SREG寄存器中INT0位在单片机复位的状态下是“0”
D.
MCUCR寄存器中INT0位在单片机复位的状态下是“0”
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【单选题】The education of _____ young has become _____ hot and serious topic in the present society. [ ]
A.
the; 不填
B.
a; the
C.
不填; the
D.
the; a
【单选题】The education of _______young is always _______ hot and serious topic in modern society.
A.
the; /
B.
a; the
C.
/; the
D.
the; a
【单选题】I usually use my computer _________my emails and buy tickets.
A.
check
B.
chceks
C.
to check
D.
checking
【单选题】The education of _______young is always _______ hot and serious topic in modern society.
A.
/; the
B.
a; the
C.
the; a
D.
the; /
【单选题】The education of _____ young has become _____ hot and serious topic in the present society.
A.
the; /
B.
a; the
C.
/; the
D.
the; a
【单选题】I usually use my ___________ to write papers and explore the Internet.
A.
digital camera
B.
laptop
C.
MP3 player
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