计算:(-72)÷(-9)=______.

题型:填空题

问题:

计算:(-72)÷(-9)=______.

考点:有理数除法
题型:填空题

阅读理解,判断正(T)误(F)。

                                                       Reading papers

     Many people sleep late on Sunday morning, but others don't. However, almost everyone reads the

paper.

     The Sunday paper is usually very thick.It has many advertisements (广告) and many different parts.

The parents in the family like the front page,and the world news page.Many men also read the sports

page.

     Most men don't read the women's pages,but the mother of the family usually does.The women's

pages have the news about parties,food,health and clothes.Most Sunday papers have interesting stories.

Children enjoy them.Old people read the death notices (讣告). They tell aboutwho have died during

the week.

( )1. The parents in the family like sports page.            

( )2. The father of the family usually read the women's pages.

( )3. Only old women read the death notices.                

( )4. Almost everyone likes reading the Sunday paper.        

( )5. This passage is about the Sunday paper.                  

题型:填空题

上海市日金公司的某材料是3个月前从广东购进的,数量为20吨,进价为200元/吨,运杂费为2400元。根据原记录和清查盘点,价格鉴证基准日库存尚有4吨材料。根据上述资料,可以确定该材料的价格鉴证值为()元。

A..980

B..1080

B..1180

D..1280

题型:填空题

向盛有0. 1mol/L AgNO3溶液的试管中滴加少量NaCl溶液,有白色沉淀生成,再向其中滴加 一定量的KI溶液,产生黄色沉淀,再向其中滴加少量的Na2S溶液,观察到有黑色沉淀生成,则 AgCl、AgI、Ag2S溶解度由大到小的顺序为[ ]

A. AgCl、Ag2S、AgI

B. Ag2S、AgI、AgCl

C. AgCl、AgI、Ag2S

D. AgI、AgCl、Ag2S

题型:填空题

下列人物与成就搭配正确的一项是()

A.史蒂芬孙——蒸汽机

B.富尔顿——火车机车

C.爱迪生——留声机

D.莱特兄弟——汽船

题型:填空题

离子选择电极法测定K+时所用的电极属

A.玻璃膜电极

B.固相膜电极

C.液态膜电极

D.甘汞电极

E.缬氨霉素膜电极

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