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Expressions about water are almost as common as water. 小题1: The expression “to be in hot water” is one of them. It is a very old expression. “Hot water” was used five hundred years ago to mean being in trouble. One story says it got that meaning from the custom of extremely throwing hot water down on enemies attacking a castle. When we are in “hot water”, we are in trouble. 小题2: A young boy can be in hot water with his mother if he comes into the house with dirty shoes. 小题3: A company seeks to keep its head above water during economic hard times. A man who loses his job tries to keep his head above water until he finds a new job. Another common expression, “to hold water”, is about the strength or weakness of an idea or opinion that you may be arguing about. If it can hold water, it is strong and has no holes in it. If your argument can hold water, it is strong and does not have any holes. 小题4: “Throwing cold water” also is an expression that deals with ideas or proposals. 小题5: For example, you want to buy a new car because the old one has some problems. But your wife “throws cold water” on the idea, because she says a new car costs too much. A.It means disliking an idea. B.You are in a difficult situation. C.A person who breaks a law can be in hot water with the police. D.If it does not hold water, then it is weak and not worth debating. E. But many of the expressions using water have unpleasant meanings. F. A man who has long been jobless will find it hard to make both ends meet. G. “To keep your head above water” is a colorful expression that means staying out of debt.
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【单选题】Consider a portfolio exhibiting an expected return of 20% in an economy in which the riskless interest rate is 8%, the expected return to the market portfolio is 0.13, and the standard deviation of th...
A.
0.12
B.
0.4
C.
0.6
D.
0.8
【单选题】患者,女性,28岁。发热7日,伴有食欲减退、腹胀,患者发病前有涉水史。体格检查:体温40摄氏度,脉搏80次/分,脾肋下2cm,外周血白细胞3.5X10的9次方/L,中性粒细胞52%,淋巴细胞48%,下列选项中哪种诊断可能性最大
A.
阿米巴病
B.
血吸虫病
C.
斑疹伤寒
D.
钩端螺旋体病
E.
伤寒
【简答题】孙悟空在大闹蟠桃园的时候,第一天吃掉了所有桃子总数一半多一个,第二天 又将剩下的桃子吃掉一半多一个,以后每天吃掉前一天剩下的一半多一个,到第N 天准备吃 的时候只剩下一个桃子。这下可把神仙们心疼坏了,请帮忙计算一下,第一天开始吃的时候桃园一共有多少个桃子。 要求: 1 、使用循环结构语句实现。 2 、整数N由键盘输入,且 2 ≤ N ≤10
【简答题】刀开关主要用在车间配电电路中作为 ,主要用来 长期工作设备的电源。
【简答题】The observations are listed as 10, 11, 15 and 18,What is standard deviation of these observations ?(keep one decimal in your answer)
【单选题】若有定义:int a=1,b=2,c=3;则以下程序段运行后c的值为()
A.
2
B.
0
C.
1
D.
-1
【单选题】患者,女性,28岁。发热7日,伴有食欲减退、腹胀,患者发病前有涉水史。体格检查:体温40°C,脉搏80次/分,脾肋下2cm,外周血白细胞3.5×109/L,中性粒细胞52%、淋巴细胞48%,下列选项中哪种诊断可能性大
A.
阿米巴病
B.
血吸虫病
C.
斑疹伤寒
D.
钩端螺旋体病
E.
伤寒
【单选题】The sample variance of hourly wages was 10. What is the sample standard deviation
A.
1.96
B.
4.67
C.
3.16
D.
10
【单选题】患者,女性,28岁。发热7日,伴有食欲减退、腹胀,患者发病前有涉水史。体 格检查体温40℃,脉搏80次/分,脾肋下2cm,外周血白细胞3.5 × 109/L,中性粒细胞52%,淋巴细胞48%,下列选项中哪种诊断可能性大
A.
阿米巴病
B.
血吸虫病
C.
斑疹伤寒
D.
钩端螺旋体病
E.
伤寒
【单选题】This is the standard deviation formula: What advice is given as the least tedious way of calculating standard deviation?
A.
Use a spreadsheet function
B.
Use a statistical calculator
C.
Use a pen and paper
D.
Don't bother
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