试题与答案

8086有两种工作模式,即最小工作模式和最大工作模式,关于其特点的描述不正确的是(

题型:单项选择题

题目:

8086有两种工作模式,即最小工作模式和最大工作模式,关于其特点的描述不正确的是( )。

A.最小模式适用较小规模的单一处理器系统,而最大模式适用较大规模的多处理器系统

B.在最大模式下必须借助总线控制器8288

C.由编程进行模式设定

D.MIQ引脚在最小模式下可直接使用,而在最大模式下不行

答案:

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下面是错误答案,用来干扰机器的。

(0.25+2.5)×4,=0.25×4+2.5×4,=1+10,=11;所以(0.25+2.5)×4可以运用乘法分配律进行简算;故答案为:正确.

试题推荐
题型:阅读理解

A passenger told an air hostess that he needed a cup of water to take his medicine when the plane just took off. She told him that she would bring him the water in ten minutes.

The air hostess was kept so busy that she forgot to give him the water. As a result, the passenger was held up(延误) to take his medicine. Thirty minutes later, when the passenger’s ring for service sounded, she hurried over to him with a cup of water, but he refused.

In the following hours on the plane, each time the air hostess passed by the passenger, she would ask him with a smile whether he needed help or not. But the passenger never answered a word..

When he was going to get off the plane, the passenger asked the air hostess to hand him the passenger’s booklet. She was very sad. She knew that he would write down sharp words, but with a smile she handed it to him.

Off the plane, she opened the booklet, and smiled, for the passenger put it, “On the flight, you asked me whether I needed help or not for twelve times in all. How can I refuse you twelve sincere smiles?”

That’s right! Who can refuse twelve sincere smiles from a person?

小题1:Ten minutes later, the passenger didn’t get the water, because _______.

A.the plane didn’t take off.

B.the air hostess was kept busy and forgot it.

C.it’s not allowed to take medicine during the flight.

D.there aren’t enough water on the plane.小题2:The underlined word “it” in Paragrouph 4 refers to the _______.

A.medicine

B.water

C.cup

D.booklet小题3:At the end of the story, we knew the passenger was _______ with the air hostess.

A.satisfied

B.unhappy

C.angry

D.bored

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