母乳中含量最丰富的无机盐为()A、铁 B、锌 C、磷 D、铜 E、钙

题型:单项选择题 A型题

问题:

母乳中含量最丰富的无机盐为()

A、铁

B、锌

C、磷

D、铜

E、钙

考点:预防医学与公共卫生学卫生法学卫生法学题库
题型:单项选择题 A型题

避雷器芯片导通的三个阶段是()。

A.低电场下的绝缘特性

B.中电场下避雷器的限压特性

C.高电场强度下的导通特性

D.超高电场强度下的击穿特性

题型:单项选择题 A型题

Starting high school means many changes in your life. Most teenagers look forward to the first day of high school, but still feel a little bit nervous. In order to make your high school life easier, you can follow these tips.

Learn all you can about your first day before the first day. Take part in some activities that are held at the school for new students to know the school better. If parents are invited to these activities, take yours with you. Carefully look over all the materials you receive. Be sure you know where the school’s buildings are.

Get the things you will need for class. Buy the things suggested on your teachers’ supply lists and place your materials for each class separately.

Keep up with your high school workload(工作量). If you find you’re not doing well in a subject, make use of after-school study groups or ask your teacher to help you with your schoolwork. Consider private tutoring to get you through a difficult time.

There’re more extracurricular(课外的)activities in high school than in middle school, such as clubs, music and theater groups, student government, and sports teams. Make friends and be seen at such school activities. Join a club or other organizations to meet people and develop friendships. Ask someone in school activities if you don’t know how. This is a good time to do what you like doing and an opportunity to try new things. Who said school has to be all work and no play?

Since you’ll attend more activities in high school than in middle school, you’ll have to learn how to manage you time…

小题1:The writer wrote this passage to ______.

A.advise us to study hard in high school.

B.tell us how to live an easier life in high school.

C.show that we may live a hard life in high school.

D.explain why there will be many changes in high school.小题2:In paragraph 2, the writer suggests that we should ______.

A.ask our parents to walk us to school

B.ask other students about our high school

C.prepare all the things we need for our classes

D.learn about our high school well before attending it小题3:According to paragraph 4, what should we do if we are not doing well in a subject?

A.We should get help from others.

B.We should stop going to activities.

C.We should spend most of our time on it.

D.We should give it up if it is not important.小题4:In paragraph 5, the writer wants to tell us that ______.

A.every coin has two sides

B.the early bird catches the worm

C.where there is a will, there is a way

D.all work and no play makes Jack a dull boy小题5:What will the writer most probably talk about next?

A.How to manage time well in high school.

B.Why we need to learn how to manage time.

C.How to attend more activities in high school.

D.Why middle school is different from high school.

题型:单项选择题 A型题

能完成字数据搜索的串指令是( )。

A.MOVSW

B.CMPSW

C.SCASW

D.LODSW

题型:单项选择题 A型题

长江是中国第一大河,也是世界第三长河,其长度仅次于尼罗河和密西西比河。

题型:单项选择题 A型题

索引的作用是什么分为哪几种类型视图有哪些作用它能为用户提供哪些方便

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