雇员受益信托

房扑最有效的治疗是（）

A.维拉帕米

B.普萘洛尔

C.直流电复律

D.西地兰

E.奎尼丁

根据句意和首字母提示填空，完成下列句子。

1. His bike is broken, he has to walk to school i_______ of riding.

2. Little Tom is t_______ of speaking aloud, he's shy.

3. When we heard the bad news, we couldn't help s_______ laughing.

4. A spider is a kind of i_______.

5. He became very i_______ in music at the age of five.

6. Annie used to be quiet, but now she's very o_______.

7. I didn't go to bed u_______ nine yesterday evening.

8. Lucy used to have short hair, but now her hair is l_______ than before.

9. Sorry, I can't join you. I h_______ to study for a test.

10. She is u_______ to the life here.

11. Don't w_______ about things so much. Take it easy.

12. It seemed that she has c_______ a lot. She's more outgoing.

13. He's f_______ to us. We're very thankful.

14. Don't you r_______ me, I'm John, your old classmate.

15. The teacher looks so s_______. What happened?

16.  He still argues, t_______ he knows he's wrong.

17.  They can't a_______ to buy a new TV set.

在工程项目策划和决策阶段，项目建议书、可行性研究报告是（）的工作成果。

A.业主

B.承包商

C.咨询工程师

D.设计方

现有长分别为1m、2m、3m的钢管各3根（每根钢管质地均匀、粗细相同且附有不同的编号），从中随机抽取n根（假设各钢管被抽取的可能性是均等的，1≤n≤9），再将抽取的钢管相接焊成笔直的一根．

（Ⅰ）当n=3时，记事件A={抽取的3根钢管中恰有2根长度相等}，求P（A）；

（Ⅱ）当n=2时，若用ξ表示新焊成的钢管的长度（焊接误差不计），

①求ξ的分布列；

②令η=-λ²ξ+λ+1，E（η）＞1，求实数λ的取值范围．

数据字典(DD)是定义( )工具中的数据的工具。

A．系统流程图

B．数据流程图

C．程序流程图

D．软件结构图