—Hello，I’d like to speak to Phil.
—He’s out to lunch now.（）

下列关于蒙特卡洛模拟法的说法，正确的有（）。

A．是一种全值估计方法，可以处理非线性、大幅波动及“肥尾”问题
B．如果产生的数据序列是伪随机数，可能导致错误结果
C．可以通过设置削减因子，使得模拟结果对近期市场的变化更快地作出反应
D．不存在模型风险
E．计算量很大，且准确性的提高速度较慢

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完型填空：阅读下面的短文，根据文章内容从A、B、C三个选项中选出一个最佳选项将其补充完整。It's very interesting to study names of different countries. Chinese names are different {A、B、C} foreign names. Once an English lady came to visit me. When I was introduced to her, she said, “Glad to meet you, Miss Ping.”Then she gave me her name card with three words on it:“Betty J. Black”.So I said,“Thank you, Miss Betty.”We looked at each other and laughed heartily. Later I found that the English people {A、B、C} their family names last and the given names {A、B、C}, while their middles are not used very much. I explained to her that the Chinese family name {A、B、C} first, the given names last, so she should never call me Miss Ping. She asked if we Chinese had a middle name. I told her we didn’t. But people may often find three words on a Chinese name card. In this case the family name still comes first, and the other words after it {A、B、C} a two-word given name. It is quite usual in China. My sister is Li Xiaofang. She has two words in her given name instead of just one like mine.1.A. fromB. inC. at2.A. holdB. putC. keep3.A. firstB. secondC. last4.A. areB. meanC. comes5.A. isB. areC. were 点击查看答案