通过对随机变量的统计试验、随机模拟来估计经济风险和工程风险的

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问题单项选择题

通过对随机变量的统计试验、随机模拟来估计经济风险和工程风险的数学方法，叫 ( )。

A．调查和专家分析法
B．层次分析法
C．蒙特卡罗法
D．统计和概率法

答案

参考答案：C

补全对话，情景问答

根据语境，用恰当的语言完成对话。

A: Have you read today's newspaper?

B: Not yet. 1.__________________________

A: Yes, a girl whose name is Jin Jing became a national hero in China.

B: 2._____________________________

A: She used all her strength to protect the torch from danger. How brave she is!

B: 3._______________ I think all Chinese people are proud of her.

A: And she is called "the smiling angle in the wheelchair (轮椅)".

B: 4.__________________________

A: Yes, she lost part of her right leg when she was 9.

B: I admire her very much now. 5._________________________

A: Sounds great. Let's think about it together.

单项选择题 A1/A2型题

粪便显微镜下形态多种多样，细胞可呈多角形、圆形、长圆形、双层胞壁等，细胞内有时含有淀粉颗粒或叶绿素小体的是（）

A.脂肪

B.淀粉颗粒

C.肌肉纤维

D.结缔组织

E.植物纤维