Martha invited 4 friends to go with her to the movies. There are 120 different w

游客2024-01-12 63

问题 Martha invited 4 friends to go with her to the movies. There are 120 different ways in which they can sit together in a row of 5 seats, one person per seat. In how many of those ways is Martha sitting in the middle seat?

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答案 24

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Martha invited 4 friends to go with her to the movies. There are 120 different w

Ounceforounce,blendsofdifferentartificialsweetenersmatchanyindividual

InspectionsystemXandinspectionsystemY,thoughbasedondifferentprinciple

Gall’shypothesisoftherebeingdifferentmentalfunctionslocalizedindiffere

Somebatcaves,likehoneybeehives,haveresidentsthattakeondifferentdutie

Ifn=pqr,wherep,q,andrarethreedifferentpositiveprimenumbers,howma

Thesumofndifferentpositiveintegersislessthan100.Whatisthegreatest

Apositiveintegerwithexactlytwodifferentdivisorsgreaterthan1mustbeA、a

Twodifferentpositiveintegersxandyareselectedfromtheoddintegersthat

Fromaboxof10lightbulbs,youaretoremove4.Howmanydifferentsetsof4l

Marthainvited4friendstogowithhertothemovies.Thereare120differentw

ThatLouiseJohannesisbelievedbymanycriticstobethegreatesttwentiet

ConsideringhowjazzistranscribedinChinese(jueshi),youmaybe【C1】______in

[originaltext]M:Sheila,you’reoneofthespeakersfortheEnglishSpeakingCo

有关费用项目计取的审查要注意的方面不包括（）。A.措施费的计算是否符合有关

患者男。65岁，慢性阻塞性肺气肿10余年，为改善透气状况，患者坚持做腹式呼吸锻炼

A.少阴经B.阳明经C.少阳经D.太阳经E.厥阴经与头痛，痛在两侧者有关的经脉是

在混凝土分缝面上出现的剪应力很小，使坝体能保持较好的整体性的是（ ）。 A、

格列齐特（达美康）的降糖作用机制正确的是A.促进葡萄糖氧化和酵解 B.妨碍葡萄

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在混凝土分缝面上出现的剪应力很小，使坝体能保持较好的整体性的是（　）。 A、