※ 引述《asdjkl ( )》之铭言： : 110. : If z^n = 1, what is the value of z ? : (A) n is a nonzero integer. : (B) z > 0 : 答案A : (A)成立的话 Z不就有两个值了吗(1或-1) : 我本来选(c) 这样z=1 (A) 任何数字的0次方都是1... 但是只有1不管是几次方都是1 -1的三方是-1 (B) Z>0可是不知道几次方，是解不出来滴，n可以为分数，根号，负数，可能可以得到1 : 116. : An insurance company has a contract with a medical laboratory to pay : a discounted price for a certain medical test performed on patients : referred to the laboratory by the insurance company. : If the laboratory's original bill for this medical test on a patient : referred by the insurance company is $230, what is the percent discount : specified by the contract between the laboratory and the insurance company? : (1) The insurance company is required to pay only 20 percent of the original : bill for the test. : (2) The insurance company is required to pay $46 for the test. : 答案D : 看不太懂题目在说啥^^" : 谢谢唷 有个保险公司和医疗实验是有合约，针对一个医疗检验有打折 若是原来实验室的检验要和保险公司请款230大洋，那合约中到底打几折勒？ (1) 保险公司只要花原来的20%就可以了 (2) 保险公司只要付46大洋就可以了 所以两个都可以得出答案 -- 什麽是签名档 可以吃吗？ --

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