将10gNaOH溶于水中配成250mL溶液。试求该溶液物质的量浓度。

阅读理解。

    What is a supermarket? In the dictionary, a supermarket is a large self-service department store. Some

supermarkets have two floors. When you enter such a supermarket,an elevator (电梯) will take you to the

second floor. Here you can buy things such as CDs, pens, clothes, TVs and refrigerator after you have

collected the things you want to buy on the second floor, you can go downstairs to the first floor where

food and drinks are sold (被卖到). You can also buy fresh fruit,vegetables and meat on this floor. 

     People like to go shopping in the supermarket. Here are some of the reasons (原因).

    *First, the prices are reasonable (合理的). The prices are lower than these in special shops and you can

choose whatever you want, without going place to place.

    ★Second the service is great. You can walk around freely and no one will ask you, "What can I do for

you?" If you can't find anything, just ask a service person and he or she will tell you where it is at once.

    ★Third, the quality is good. If you get home and find the food bad, you can return it and they will say

sorry and change it for you.

    ★Nowadays many people don't have much time to walk from one shop to another, so people choose to

go to the supermarket in order to save time and money.

    ★What's more, if you don't want to buy anything,you can just come and look around in the supermarket.

It's a good place to have a walk.

根据短文内容，回答下列问题。

1.What is a supermarket?

   _____________________________________________________________________

2.Can you buy fresh fruit, vegetables and meat in the supermarket?

    _____________________________________________________________________

3.How many reasons are given for going shopping in the supermarket?

    _____________________________________________________________________

4.Are the prices lower in this supermarket than these in special shops?

   _____________________________________________________________________

5.What does the passage want to tell us?

   _____________________________________________________________________

女，28岁，间歇性牙龈出血1年。体检：双下肢可见散在出血点及紫斑，肝脾不大，余无异常。血红蛋白110g／L，红细胞42×10¹²／L，白细胞6．0×10⁹／L，分类正常，血小板28×10⁹／L。

为确诊，应先做哪项检查（）。

A.抗核抗体检查

B.出血时间

C.凝血时间

D.骨髓象检查

E.Coombs试验

生长最低温度（也称生物学零度或限度）。

1972年中日邦交正常化和（）缔结和平友好条约谈判过程中，两国老一辈领导人着眼大局，就“钓鱼岛问题放一放，留待以后解决”达成重要谅解和共识。

A、1975年

B、1976年

C、1977年

D、1978年

在竞价卖法中，价格设置通常使用一口价、底价、起始价，相互之间的关系是一口价＞底价≥起始价（）