固定间隔期系统的优点有()。A.节约库存总成本 B.一次办理多种商品的订购，订购费用

为了防治大气污染，政府对各个企业进行整改。甲公司接受政府整改，对其生产经营用设备安装了环保过滤设备。在整改期间，甲公司停止生产。该环保设施的购买价款为50万元，发生的增值税进项税额为8.5万元，预计使用寿命为10年。至整改完成日即2013年9月30日，该整改的设备已使用10年，原值为2000万元，计提的折旧金额为500万元，预计尚可使用年限为20年，预计净残值为0，按照直线法计提折旧。假定不考虑其他因素，则下列说法中正确的是（）。

A.甲公司将该环保设备在购入时直接计入当期损益

B.甲公司将该环保设备并入生产用设备，并按照10年计提折旧

C.甲公司对环保设备按照10年单独计提折旧

D.甲公司整改完成后，环保设施与生产用设备作为一个整体确认为固定资产

“民主像一座搭在师生心灵之间的桥，民主程度越高，这座连通心灵的桥就越坚固，越宽阔。”由此可见，建立民主平等的师生关系 [ ]

①师生之间应互尊互爱

②要逐步增强民主、平等意识

③学生不给老师提出不同意见

④学生要正确处理与老师之间的矛盾

A．①②③④

B．①②

C．①②④

D．②③④

布草房应对楼层和（）的布草定期盘点。

A、餐厅

B、客房

C、前台

D、卫生间

阅读理解。

     How words came into being is unknown. All we assume (推测) is that some early men invented

certain sounds, in one way or another, to express thoughts and feelings, actions and things, so that they

could talk with each other. Later they agreed upon certain signs, called letters, which could be put

together to show those sounds and which could be written down.Those sounds, whether spoken or

written in letters, are called words.

    The power of words, then, lies in their associations-the things they bring up to our minds. Words

become filled with meaning for us by experience; and the longer we live, the more certain words bring

back to us the happy and sad events of our past; and the more we read and learn, the more the number

of words that mean something to us increases.

    Great writers are those who not only have great thoughts but also express these thoughts in words

which have powerful effects on our minds and feelings. This clever use of words is what we call literary

style (文体). Above all, the real poet is a master of words. He can express his meaning in words which

sing like music, and which by their position and association can move men to tears. We should therefore

learn to choose our words carefully and use them correctly, or they will make our speech silly and

common.

1.We learn from the text that language might have begun with ________.

A. expressions      

B. actions

C .signs  

D. sounds

2.What is mainly discussed in Paragraph 2?

A. The learning of new words.

B. The importance of old words.

C. The relation of human experience with words.

D. The gradual change and development of words.

3. In the last paragraph, what does the author suggest that we should do?

A. Use words skilfully.

B. Make musical speeches.

C. Learn poems by heart.

D. Associate with listeners.

根据《通信电源设备安装监理暂行规定》，电池组充、放电试验应符合（）要求。

A.设计文件

B.安装规范

C.厂家说明书

D.行业标准