首页
登录
职称英语
The buyer of a certain mechanical toy must choose 2 of 4 optional motions and 4
The buyer of a certain mechanical toy must choose 2 of 4 optional motions and 4
游客
2024-01-12
92
管理
问题
The buyer of a certain mechanical toy must choose 2 of 4 optional motions and 4 of 5 optional accessories. How many different combinations of motions and accessories are available to the buyer?
选项
A、8
B、11
C、15
D、20
E、30
答案
E
解析
一购买机械玩具的顾客必须从4个可选择的机械装置中选择2个,且从5个附件中选择4个,问共有多少种不同机构装置和附件的组合可供这个顾客选择?
解:本题的正确答案为(E)。总的组合数为
转载请注明原文地址:https://tihaiku.com/zcyy/3356861.html
相关试题推荐
Acertainmayorhasproposedafeeoffivedollarsperdayonprivatevehiclese
Certainmessengermoleculesfightdamagetothelungsfromnoxiousairbytellin
Themostwidelyusedtherapyforacertaintypeofulcercompletelyhealssuchu
Acertaintypeofshrimphabituallyhoversaroundsuperheateddeep-seageysers,
Fromacertainfarmingregion,truckscancarryvegetablestomarketinNewMexi
Scientistshaverediscoveredcertainfoodcrops,oncecommonlycultivatedinthe
Notingthatthenumberofcrimescommittedinacertaincityhaddecreasedin19
Thetoxinproducedbycertainmarinesnailscontainsvariousproteins,oneofwh
Figuresissuedbythegovernmentofacertaincountryshowthatin1980thepubl
Inacertainmunicipality,ajudgeoverturnedasuspect’sconvictionforposses
随机试题
"Cool"isawordwithmanymeanings.Itstraditionalmeaningisusedto【C1】_
TheUnitedStatesisoftenconsideredayoungnation,butinfactitisnext
America’sFederalReservecutinterestratesbyanotherquarter-point,to3.
VideoconferencingisnothingmorethanatelevisionsetorPCmonitorwitha
[originaltext]M:Hello,Ihaveareservationfortonight.W:Yourname,please.
计算机执行指令的过程中,需要由()产生每条指令的操作信号并将信号送往相应的部件
脚手板搭接铺设时,接头必须支在横向水平杆上,搭接长度应大于()mm。A.200
在对某一类高层商业综合体进行检查时,查阅资料得知,该楼地上共6层,每层划分为12
我国人民代表大会制度的政治基础、根本原则和核心内容是()。A.民主集中制 B.
依最高人民法院《关于审理信用证纠纷案件若干问题的规定》,下列关于我国在信用证项下
最新回复
(
0
)