企业竞争力的DNA是指（）。A、企业创新能力 B、企业组织能力 C、企业文化力

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

  1  One of the best things you can possibly do is to start you own club. It’s great fun especially if you are the sort of the person who feels there’s never anything to do during the school holidays.

The first thing you need to come up with is an idea for your club.  2  Pets ,clothes, pop music or dancing groups , sports, making things? The list is endless.

Next you need some friends to be in your club with you .  3  All you need is three or four other people who are interested in the same thing as you.

__4____You should all sit down somewhere together with lots of pieces of paper and write down every name you can think up. That will keep you busy for ages.

At your first meeting you should make up a rule book . And the first rule should be no grown-ups or little \big brothers or sisters. The best clubs are always secret.

Now you have just about everything you need, except membership cards. These are very important and again you can speed a lot of time making them. 5 Why not leave some space for a photo of yourself ? That will make the membership card really look like it.

So there you are , get clubbing . Once you get started you will think of loads of more interesting things to do .

A  That is easy.

B  Enjoy your own club.

C  Invite a designer to join you.

D  What are you interest in ?

E  Some vacation is just around the corner.

F  Then you need to pick a name for your club.

G  Use a bright thick pen to make a special design.

(选做题)下面是利用大肠杆菌生产人胰岛素的有关问题，请回答：

(1)利用大肠杆菌生产人胰岛素必须应用_____________和_____________等工程学手段。

(2)大肠杆菌质粒经EcoRⅠ(一种限制性核酸内切酶)切割后所形成的黏性末端之一是，则EcoRⅠ的识别序列和切点是_________________(切点用箭头标在序列上)。

(3)要将人的胰岛素基因插入上述质粒切口形成重组质粒必须利用的工具酶是_________。

小儿表现活泼好动、好奇多问，最可能处于（）。

A.婴儿期

B.幼儿期

C.学龄前期

D.学龄期

E.青春期

把一定质量的锌和镁分别投入足量的稀盐酸中，充分反应后，生成氢气的质量关系如下图所示（图中m表示氢气的质量，t表示反应时间），则投入的锌和镁的质量比是

A. 1：1

B. 24：65

C. 65：24

D. 无法确定

2008年3月5日姜波在银行办理存款业务时，获赠一份意外险保单，身故伤残保险金额为20000元，医疗费用保险金额为10000元，姜波考虑自己已经投保过意外险，就以朋友刘鹏的名义办理了此意外险，2008年5月4日，刘鹏在乘车外出期间因乘坐车辆发生事故死亡，5月8日姜波向保险公司提出索赔，保险公司应怎样理赔？（）

A.姜波不能索赔

B.刘鹏的第一继承人可以索赔

C.姜波和刘鹏的第一继承人一起索赔

D.保险合同无效不能索赔