题目内容

下面关于8259A可编程控制器的叙述中,错误的是

A. 8259A的命令字共有7个,分为初始化命令字和操作命令字两类
B. 8259A的命令字个数多于该芯片的I/O端口个数
C. 8259A的初始化命令字必需按一定的顺序写入
D. 8259A初始化时先写入操作命令字,再写入初始化命令字

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Jesse had a good time in his friends' home.

A. Right
B. Wrong
C. Not mentioned

Which of the following statements is NOT true, according to the passage

A. Most supermarkets have a very large floor area.
B. Most supermarkets have a floor area as large as that of an ordinary shop.
C. Most supermarkets are on one floor only.
D. Some supermarkets have a floor area at least ten times as big as that of an ordinary shop.

The children like Jesse because he once traveled around the world.

A. Right
B. Wrong
C. Not mentioned

Thanksgiving Day falls on the 4th Thursday in November,

A. Right
B. Wrong
C. Not mentioned

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