函数f(x)=x3+64x的零点个数是 ______.

题型:填空题

问题:

函数f(x)=x3+64x的零点个数是 ______.

考点:函数的零点与方程根的联系
题型:填空题
多项式2ab2-6a3b+4abx的公因式是(  )
A.abB.2abC.2ab2 D.3ab
题型:填空题

与锤造支托相比较,铸造支托突出的优点是()

A.防止义齿下沉

B.支持义齿

C.制作方便

D.恢复咬合关系和良好的牙尖接触关系

E.价格便宜

题型:填空题

阅读理解。

     A famous teacher was speaking to the students at our school. He began his lesson by holding up a

£100 bill. Then he said to the three hundred students, "Who would like to have this £100 bill?" The

students began to put up their hands at once.

     Then he said, "I am going to give this bill to one of you, but first, let me do this." He then made this

bill into a ball. Then he said, "Who wants it?" Hands went into the air.

     "Well," he said, "What if I do this?" and he dropped it on the floor and stepped on it. He picked up the

dirty, crumpled bill and said, "Who still wants it?" Hands went back into the air.

     "My friends," he said, "You've learned a valued lesson today. No matter what I did to the money, you

still wanted it because it didn't go down in value. It was still worth £100.

     Many times in our lives, we're dropped, crumpled, and stepped on by the chances we take and the

things that happen to us. We feel as if we are worth nothing. But remember, no matter what has happened

to you, you will never lose your value: you are always valuable to those who love you. Your value doesn't

come from what you drop or whom you know,but WHO YOU ARE.

     You are special and valuable. Don't ever forget it!

1. The story happened ______.

A. when the teacher gave the students some advice on how to learn English.

B. when the students were having a meeting.

C. when the teacher gave the students a speech.

D. when the students were discussing something interesting with their teachers.

2. Even though the money was dirty, it _______.

A. went up in value

B. was worth much

C. didn't reduce in value

D. was still ours

3. The underlined sentence in the third paragraph means_______.

A. the students put up their hands again.

B. the students put down their hands.

C. the students agreed to what the teacher said

D. the students put their hands in front of them

4. Why did the famous teacher use a £100 at his lesson?

A. Because he wanted to give a lecture about money.

B. Because he was used to dropping a bill on the floor and stepping on it.

C. Because he was going to give the bill to one of the students.

D. Because he wanted to make the students know what the value was.

5. What lesson can you learn from the passage?

A.£100 bill is worth the same no matter what you do with it .

B. All people love money most.

C. Your value doesn't change no matter what happens to you.

D. The value of money changes when it is made dirty.

题型:填空题

在质押式债券回购中,逆回购方可以利用回购“买断”的债券进行相应的套利操作。

题型:填空题

设置固定资产卡片样式,对固定资产卡片进行存储和管理,可使操作者能够灵活地进行增加、删除、修改、查询。 ( )

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