【判断题】【消耗次数：1】
8051内部有4K的程序存储器。
①
正确
②
错误
参考答案：
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相关题目
【简答题】
要组成容量为4K*8位的存储器，需要几片4K×1位的芯片并联？
【简答题】
要组成容量为4K*8位的存储器，需要[填空1]片4K×1位的芯片并联，或者需要[填空2]片1K×8位的芯片串联。
【单选题】
关于8051单片机的存储器，下列表述中，错误的是。
①
程序存储器是存放程序的，不能存放数据。
②
内部数据存储器的单元地址是一个8位二进制数。
③
外部数据存储器的容量是64KB。
④
特殊功能寄存器通常是用于对各种功能电路进行控制和管理的。
【单选题】
存储器分为内存储器和外存储器两类，下列哪种说法正确？
①
它们中的数据均可被CPU直接调用
②
其中只有外存储器中的数据可被CPU直接调用
③
它们中的数据均不能被CPU直接调用
④
其中只有内存储器中的数据可被CPU直接调用
随机题目
【单选题】
If they______to do this work,he might do it some other way.
①
were
②
should
③
will
④
can
【单选题】
“I love you” is never a touch on lightly; its the signal ______ a romantic relationship is serious,or an indication of closeness between parents and children.
①
that
②
why
③
when
④
whether
【单选题】
“ Has he seen this film ? ” “Yes. He______ it several days ago.”
①
saw
②
has seen
③
had seen
④
was seeing
【单选题】
The thought flashed across my mind: “By some ?means or______ she has some information about my engagement. But how?”
①
other
②
others
③
the other
④
the others
【单选题】
You cant imagine what great trouble they have________the problem________.
①
to solve;being talked about
②
solving;discussing
③
to solve;to talk about
④
solving;being discussed
【单选题】
When I saw Mary , she _______on the piano.
①
is playing
②
plays
③
was playing
④
played
【单选题】
It may only be through repeated experiments _______ a baby will come to accept the idea _______ other people can have different views from what he or she has.
①
how;which
②
how;that
③
that;that
④
which;which