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—Excuse me, Madam.Taking photos is forbidden here out of security.—I’m really sorry, I _______ of th
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(1)计算:(2)计算:(3)分解因式:-八年级数学
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— Flight MU257 ______, I must be off now.— Have a nice trip.A.is being announcedB.has announced C.wa
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If we use the new recycling method, a large number of trees.A.are savedB.will saveC.will be savedD.h
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--- Are we about to have dinner?--- Yes, it _______ in the dining room. A.is servingB.servesC.is bei
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I got caught in the rain and my suit______.A.has ruinedB.had ruinedC.has been ruinedD.had been ruine
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.Although itin the desert most of the year, people still live there.A.doesn’t rainB.didn’t rainC.has
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The hostess of the party, who ______ as a doctor for five years, is president of a famous private sc
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Wethe top of the mountain but for this awful weather.It rained all day.A.will reachB.would reachC.ha
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三角形三边长分别是㎝、㎝、㎝,则它的周长是()。-八年级数学
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—Are you still very busy?—Yes,I ______ the report for the manager and it won’t take long.A.have just
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Professor Wang ________in our school till next Sunday.A.will have stayedB.has stayedC.is stayingD.st
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—Happy Birthday, Ken! Did you invite Jason?—Yes, but he _____ a meeting in New York otherwise he wou
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Must I get through the business in one evening? No, you ________.A.mustn’tB.haven’tC.needn’t toD.don
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Once e-mail learners _______ with the basic knowledge of how to use the network, they ______ to a lo
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That Was the first time shealone at home during the weekends,bored to death.A.has leftB.has been lef
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(1)(2)(3)(4)-八年级数学
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Thank you for your timely help; otherwise we _______ in great trouble now.A.areB.would have beenC.wo
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题目简介
计算:(1)(2)-八年级数学
题目详情
(2)
答案
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(2)原式=