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[主观题]

MCU parallel I/O port line P1.0 to P1.3 connected to four LED, at this time it is what interface function?

A、input interface

B、output interface

C、

D、

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更多“MCU parallel I/O port line P1.…”相关的问题

第1题

MCS-51 MCU parallel I/O port has 4 8-bit I/O ports, respectively , , , .
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第2题

“Inability to provide for the first watch at the commencement of a voyage and for subsequent relieving watches persons who are sufficiently rested and otherwise fit for duty” is considered to be one of the detainable deficiencies under .

A.the SOLAS Convention

B.the MARPOL Convention

C.the STCW Convention

D.the LIAD LINE Convention

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第3题

At what time is Sport and Leisure Center open?

______ .

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第4题

根据材料,完成题。

Teach Your Child Science

1. It is important to make your child interested in science from an early age. Most young children ask a lot of questions and you should give careful scientific answers.Don&39;t only give facts but try to give explanations as well.

2. Science is not just knowledge ; it is a way of thinking, a method of finding out about the world. We see something.We try to explain it, and we test our idea by setting up all experiments. One day you come home and find the plant on the table has fallen over. You think it might be the wind from the open window or the cat. So you close the window, but leave the cat in and see what happens ( you can also try leaving the window open and shunning the cat out ) . Of course, you remember there may be a third explanation.

3. Ask your child to get a piece of string, some salt, a glass of water and an ice Cube ( 冰块 ) . Tell her to put the ice in the water, and then put one end of the string on the ice, leaving the other end over the side of the glass. Put a lime salt on the ice, wait a minute, and then pull the string, it should be attached to the ice. Ask the child : "what has happened?"

4. Probably she won&39;t know. Ask her whether fresh water or salt water freezes into ice first. If you live near the sea and have a cold winter, she should know fresh water freezes first as she will have seen that happen. Show her how to test the idea by half-filling two paper cups with water. Then put them in the icebox and check

every three minutes. Write the results in a table. The conclusion will be that salt changes the behavior. of water,thinking about the string, we see the salt turned some of the ice into water. Then the salt went away into the water and the ice froze again leaving the string attached.

5. Then you can ask, "Will water with salt boil at the same temperature as water without salt?" She can think, tell you her idea and ( taking care the heat ) you can test it in the kitchen.

Paragraph 1 __________? 查看材料

A.What exactly is science.

B.How do you find an explanation.

C.What topics do you need.

D.How do you answer your child"s questions.

E.Where does your child study science.

F.How do you set up the experiment on salt and water,

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第5题

Nowadays many novels are adapted into films or TV plays. What do you think of film adaptations of literature? Write a comment of about 400 words on this issue.

In the first part of your writing you should present your thesis statement, and in the second part you should support the thesis statement with appropriate details. In the last part you should bring what you have written to a natural conclusion or a summary.

Marks will be awarded for content, organization, grammar and appropriateness. Failure to follow the above instructions may result in a loss of marks.

Write your composition on ANSWER SHEET FOUR.

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第6题

听力原文:W: We have to face the fact that it is a little hard to fuel for the car.

M: Between you and me, I think there is always a way to get around this problem.

Q: What does the man mean?

(16)

A.He doesn't think it necessary to refuel the car.

B.He can manage to get the gasoline they need.

C.He hopes the woman will help him select a fuel.

D.He thinks it is difficult to get fuel for the car.

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第7题

Task 2

Directions: This task is the same as Task 1. The 5 questions or unfinished statements are numbered 41 through 45.

Letter 1

Dear Ann,

I'm going to give a dinner party next month. I want my guests to enjoy themselves and to feel comfortable. What's the secret of giving a successful party?

Mary

Letter 2

Dear Mary,

Cook something that would let you spend time with your guests. If a guest offers to help you in the kitchen, accept the offer. It often makes people feel more comfortable when they can help.

Before serving dinner, while your guests make small talks in the living room, offer them drinks. Some guests may like wine, but make sure to provide soft drinks for people who don't.

At the dinner table, let your guests serve themselves. Offer them a second serving after they finish, but don't ask more than once. Most guests will take more if they want.

Perhaps the most important rule of all is to be natural. Treat your guests as you want them to treat you when you're in their home—that is, act naturally toward them, and don't try too hard to be polite. Have a good time in a pleasant atmosphere.

Ann

From the first letter we learn that Mary ______.

A.is asking for advice on giving a dinner party

B.knows the secret of giving a pleasant party

C.is going to attend a dinner party

D.has successfully held a party

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