试述个体私营经济的地位和作用。

生石灰烧伤后，以下哪种紧急处理方法最为妥当（）

A.简单包扎后到专科医院治疗

B.大量清水冲洗

C.先去除表面石灰，再用大量清水冲洗

D.用酸性中和液冲洗

E.立即涂抹烧伤药

根据有关法律规定，下列行为中属于无效民事行为的有：

A．不满十周岁的萌萌自己决定将压岁钱 500元捐赠给希望工程

B．李某因认识上的错误给儿子买回一双不能穿的鞋

C．甲企业的业务员黄某自己得到乙企业给予的回扣款1000元，而代理甲企业向乙企业购买了10吨劣质煤

D．丙公司向丁公司转让一辆无牌照的走私车

E．张某在服役期间委托他人将自己的汽车卖给李某

In every cultivated language, there are two great classes of words which, taken together, comprise the whole vocabulary. First, there are those words（1）which we become acquainted in daily conversation, which we（2）,that is to say, from the（3） of our own family and from our familiar associates, and（4） we should know and use （5 ）we could not read or write. They （6） the common things of life, and are the stock in trade of all who （7） the language. Such words may be called“popular”, since they belong to the people （8） and are not the exclusive （9） of a limited class. On the other hand, our language （10） a multitude of words which are comparatively （11） used in ordinary conversation. Their meanings are known to every educated person, but there is little （12） to use them at home or in the market-place. Our （13） acquaintance with them comes not from our mother's （14） or from the talk of our school-mates, （15） from books that we read, lectures that we （16） ,or the more （17）conversation of highly educated speakers who are discussing some particular （18） n a style appropriately elevated above the habitual（19） f everyday life. Such words are called“learned”, and the （20） between them and the“popular”words is of great importance to a right understanding of linguistic process.

请在3处填上正确答案（）

A.mates

B.relatives

C.members

D.fellows

以下不得作为有限公司股东出资的有（）。

A.商誉

B.特许经营权

C.著作权

D.设定担保的财产

已知矩阵

可逆，

且