首页
登录
职称英语
If x and y are different prime numbers, each greater than 2, which of the follow
If x and y are different prime numbers, each greater than 2, which of the follow
游客
2024-01-12
19
管理
问题
If x and y are different prime numbers, each greater than 2, which of the following must be true?
Ⅰ. x+y ≠91
Ⅱ. x-y is an even integer.
Ⅲ. x/y is not an integer.
选项
A、Ⅱ only
B、Ⅰ and Ⅱ only
C、Ⅰ and Ⅲ only
D、Ⅱ and Ⅲ only
E、Ⅰ, Ⅱ and Ⅲ
答案
E
解析
x,y都是大于2的质数,那么x,y必然都是奇数,所以两者之和必然为偶数,那么Ⅰ正确,两者之差也是偶数,Ⅱ正确,而由于x,y互质,x/y必然不是整数。因此E为正确答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3355020.html
相关试题推荐
如果你遵循这些小步骤,它们会对地球产生巨大的影响。Ifyoufollowthesesmallsteps,theycanmakeabigdi
Thefollowingdatasufficiencyproblemsconsistofaquestionandtwostatements
Thefollowingdatasufficiencyproblemsconsistofaquestionandtwostatements
Whichofthefollowingisequaltothecubeofanon-integer?A、-64B、-1C、8D、9
Whichofthefollowingistheclosestapproximationof[img]2011q3/ct_egmatqj_eg
Iffandgaredistinctprimenumberslessthan10,whichofthefollowingcanno
If(x-1)2=144,whichofthefollowingcouldbethevalueof2x?A、-26B、-22C、-11
Thefollowingdatasufficiencyproblemsconsistofaquestionandtwostatements
WINK,Inc.followsacertainprocedurethatrequirestwotaskstobefinishedin
Thefollowingdatasufficiencyproblemsconsistofaquestionandtwostatements
随机试题
[originaltext]NotenoughAmericanstudentswanttobeengineers,mathematic
[originaltext]M:Hello.W:Hello,Sam.ThisisEmmaRobert.Sorrytobothery
下列各项,关于产褥感染的说法错误的是()(2006)A.为缓解中毒症状,
某施工企业项目经理在组织现场施工中,为了赶工期,违反了施工安全管理条例的有关规定
某社区老年服务中心的五位工作人员组成一个小组,讨论如何满足本地独居老人的需要。小
(2015年5月)企业战略的实质是实现外部环境、( )和战略目标三者之间的动态
经中国银行业监督管理委员会批准,消费金融公司可经营的人民币业务包括()。A.办
牙齿震荡的临床表现不包括A.牙齿酸痛 B.咬合不适 C.叩痛(+) D.牙
口腔预防教研室集体备课时,李老师指出老年人随着年龄的增长,口腔疾病主要增加的是A
(2015年真题)设计概算一经批准一般不得进行调整,其总投资应反映()时的
最新回复
(
0
)