设,且f"(0)存在,则( )

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问题:

,且f"(0)存在,则( )

考点:普通考研考研数学(三)考研数学三
题型:单项选择题
Frank worked for the Canadian government. One day, he was小题1:to learn more about wolves (狼). Do wolves kill lots of caribou (北美驯鹿)? Do they kill people?They gave him lots of food, clothes and guns (手枪). Then they put him on a plane and took him to小题2:.The plane put him down and went away. There were no houses or people in this place. But there were lots of animals and lots of wolves.People tell   小题3:stories about wolves. They say wolves like to kill and eat people. Frank remembered these stories, and he was afraid. He had his gun with him  小题4:.
Then one day, he saw a group of wolves. There was a mother wolf with four baby wolves. A father wolf and another young wolf lived with them.Frank  小题5: these wolves every day. The mother was a very good mother. She gave milk to her babies. She gave them lessons about life. They learned   小题6: get food. The father wolf got food for the mother. The young wolf  小题7:the children. They were a nice, happy family—a wolf family! Frank did not need his  小题8:any longer. In a short time, he got on well with the family.
Frank watched them for five months. He learned that many stories about the wolves were  小题9:.Wolves do not eat people, and they do not eat many large animals. And he also learned bad things about men. It was men who killed many caribou and wolves.
Later, Frank wrote a book about wolves. He wanted people to  小题10:them and not to kill them.
小题11:
A.toldB.seenC.heardD.tell
小题12:
A.a small townB.a big cityC.a far placeD.a lonely beach
小题13:
A.happyB.terribleC.afraidD.boring
小题14:
A.sometimesB.all the night C.once a weekD.all the time
小题15:
A.lookedB.heardC.watchedD.drew
小题16:
A.whereB.how toC.what toD.when
小题17:
A.laughed atB.looked forC.took careD.played with
小题18:
A.foodB.gunC.moneyD.patience
小题19:
A.not trueB.trueC.interestingD.not interesting
小题20:
A.growB.understandC.knewD.feed
题型:单项选择题

按酸、碱、盐、氧化物的分类,下列各组物质属于同一类别的是 [ ]

A.氯化钠和碳酸钠

B.硝酸和硝酸铵

C.氧化镁和氯化镁

D.氧化钙和氢氧化钙

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We often find many people are complaining about their work around us. It’s clear that we can not deal with the pressure caused by work at all. So how can we have a happy working day? __1___

Make yourself energetic every morning. It means you should not stay up too late. You should take a comfortable shower and go to bed before 22:00 every night. __2__

Keep smiling once you open your eyes. When getting up from your bed, you should always keep a smile on your face. __3___ And you can listen to some soft music you like with your headset on the way to yoru company.

___4__ Before you get down to work, you can make a list of the work that you are going to finish today. You will find out what are the most important things to do and what are the less important ones.

Improve your relationships in the office. Make a habit of saying hello actively to your colleagues, as a gesture of friendship. You will be happier if you can get along well with your colleagues and your life will go more smoothly.

___5__ The key is whether you have a possive attitude. The above are my suggestions. Hope they can help you to have a great day!

A.In short, we create real happiness for ourselves.

B.In fact, it’s not so difficult if we can do as follows.

C.List out what you are going to do in the office today.

D.Therefore, we should stop complaining about our work.E. Say hello to your family members and friends on the road.

F. Have the right attitude towards work and the people around us.

G. Plenty of sleep is healthy and it can offer you a whole day’s energy.

题型:单项选择题

不属于佐药范畴的是()

A.制约君臣药峻烈之性的药物

B.直接治疗次要症状的药物

C.用以消除或减低君臣药毒性的药物

D.配合君臣药加强治疗作用的药物

E.引导诸药至病所的药物

题型:单项选择题

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