因为写到了两题不太懂得数学 上来请教各位了 1.The rate of a certain chemical reaction is directly proportional to the square of the concentration of chemical A present and inversely proportional to the concentration of chemical B present. If the concentration of chemical B is increased by 100 percent, which of the following is closest to the percent change in the concentration of chemical A required to keep the reaction rate unchanged ? (A)100% decrease (B)50% decrease (C)40% decrease (D)40% increase (E)50% increase ANS:(D) 2.For every positive even integer n the function h(n) is defined to be the product of all the even integers from 2 to n, inclusive. If p is the smallest prime factor of h(100)+1, then p is ?? (A)between 2 to 10 (B)between 10 to 20 (C)between 20 to 30 (D)between 30 to 40 (E)greater than 40 ANS:(E) 以上两题 麻烦各位了 感谢 -- 我的收藏: http://www.wretch.cc/album/show.php?i=chihkai&b=17&f=1133267969&p=263 我的电影版变形金刚(陆续新增唷): http://www.wretch.cc/album/show.php?i=chihkai&b=67&f=1531390148&p=64 房间一览: http://www.wretch.cc/album/album.php?id=chihkai&book=17&page=24 --

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