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______ he has said sorry to you, please give him another chance. A.When B.Since C.Before D.Until
12个月前
东华小学要买50套课桌椅,每张桌子75元,每把椅子25元.一共付多少元?
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How many ____ can you see? A. triangle B. triangles C. a triangle
1年前
Look at the ______, sir. The white shirt is larger than the yellow one.
1年前
如图,在△ABC中,∠BCA=90°,以BC为直径的⊙O交AB于点P,Q是AC的中点.判断直线PQ与⊙O的位置关系,并说明理由.
1年前