监理工程师应当按照工程监理规范的要求，采取旁站、巡视和平行检验等形式，对建设工程实施

化学就在我们身边，它能改善我们的生活。

从“

A．干冰

B．氮气

C．氢气

D．石油E．碳酸钠   F．氢氧化钠”中选择适当的物质填空(填字母)。

Ⅰ．被称为理想的“绿色能源”是        ；Ⅱ．可用于人工降雨的物质是         ；

Ⅲ．常用的纯碱是指                  ；Ⅳ．被誉为“工业的血液”的是         ；

⑵下图是某品牌矿泉水标签的部分内容，请按要求填写：

Ⅰ．用离子符号表示出其中的一种阳离子    　         　  ；

Ⅱ．矿物质水的主要成分是H₂O，请用化学符号表示水中氧元素的化合价 　       ；

Ⅲ．鱼类可在水中呼吸，是因为水中溶解有   　　　　             （填化学符号）。

⑶现有四个常见化学名词：①乳化　②结晶　③溶解　④蒸馏，请选择适当的化学名词的序号填在与之相对应操作后面的横线上（每空填写一个）：

Ⅰ．将硬水直接转变成软水       ；Ⅱ．将洗发水洗去头发上的油污         。

下列账款中属于未达账项的有（）。

A.企业已开出但银行尚未兑付的支票

B.在途存款

C.银行存到委托款项但尚未通知企业

D.企业已收到但尚未送存银行的支票

E.银行划付电话费并将其通知单送达企业

To most of us，school means classes，teachers，schedules，grades，and tests.But for the children at Sudbury Valley School in Massachusetts，school is very different.

Firstly，there are no lessons.All the children，aged between 4 and 19，do whatever they want.There are no teachers—only “staff members”．The idea behind this is that you do not need to make children learn，because children want to learn anyway.“You do not need to say to a three year­old，‘Go explore your environment.'You can't stop them！” says Daniel Greenberg，a founder of the school.“But if you make children do what you want all day，they will lose all taste for learning.”

At Sudbury Valley School，you will permit children to talk，read，paint，cook，work on computers，study French，play the piano，climb trees or just run around.Two boys spent three years just fishing!

The other way that Sudbury Valley School is different is that the children can decide the rules.Every week，there is a school meeting where both children and staff have one vote each—even the four­year­olds.They decide the school rules，how to spend the school budget，and even which staff they want and do not want any more.

When the school first opened in 1968，people said it would never work.But today，the school has 200 students，and 80%of its students go on to college. Even the two boys who went fishing all the time have successful careers today.One of them is a musician and the other is a computer scientist.

小题1:What is the main topic of the article?

A．An unusual school.

B．Children's hobbies.

C．A school without rules.

D．Education in the US.小题2:What does the school believe?

A．Teachers cannot teach children Well.

B．Children learn best when they do what they want to do.

C．Learning is for adults—children should only play.

D．Children should only learn about one thing at a time.小题3:What does Daniel Greenberg say about three­year­olds?

A．They love learning.

B．They are very naughty.

C．They want to be outside all the time.

D．They are too young to learn anything.小题4:Who has the most power in the school meetings?

A．The older children have more power than the younger children.

B．A child has more power than an adult.

C．The younger children have more power than the older children.

D．Everybody has equal power.

外界气压降低时，机体中氮的脱饱和最慢的组织是（）

A.血液

B.淋巴

C.脂肪

D.肌肉

E.脑灰质

判定是否兼类词要看哪些条件？