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【简答题】
泥盆纪(400Ma)生物登陆。原因是地球大气臭氧层形成,阻挡了( )。
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【单选题】听力原文：M: It's nice and quiet here, away from the dust and noise of the city. And our apartments are new and well-furnished. W: It's a good place except it's a bit far from the place where we work. Anyw...
A.
Looking for an apartment.
B.
Taking a suburban excursion.
C.
Looking for a job.
D.
Asking the man for his opinions.
【单选题】8086/8088 微处理器中设置了一个 16 位的标志寄存器 FLAGS ,其中的 CF 标志称为:
A.
进位标志位
B.
溢出标志位
C.
符号标志位
D.
零标志位
【简答题】标志寄存器是16位寄存器,它有6个状态标志和3个控制标志,其中:CF为_____标志位,ZF为_____标志位,OF为_____标志位,IF为_____标志位。
【简答题】CF为( )标志位
【单选题】听力原文：M: It's nice and quiet here, away from the dust and noise of the city. And our apartments are new and well furnished. W: It's a good place except it is a bit far from the place where we work. Any...
A.
Looking for an apartment.
B.
Taking a suburban excursion.
C.
Asking the man for his opinions.
D.
Looking for a job.
【简答题】标志寄存器中的9个标志分为两组，SF、ZF、OF、CF、AF、PF为_________标志，DF、IF、TF为_____________标志。
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