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已知:p和e成正比,e和i也成比例,求i=70时p的值。 设:p=K1*e, e=K2i (K1,K2为比例系数) 代入可得:p=(K1K2)*i,设K1K2=K,则有p=Ki Statement (1) Alone 可以求出K2,K1未知,无法确定p和i之间的比例系数K,也就无法根据一个i的值确定p的值,所以不充分 Statement (2) Alone 可以直接求出K值,确定p=0.04i,将i=70代入求出唯一p=2.8,所以条件二充分

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- 【OG18-P680-668题】In a review of 2,000 studies of human behavior that date back to the 1940s, two Swiss psychologists, declaring that since most of the studies had failed to control for such variables as social class and family size, none could be taken seriously.
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- The passage provides information to support which of the following statement about La Nina?
- The author of the passage would most likely agree with which of the following statements about the link between increased solar activity and certain seasonal weather changes on the Earth?
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