已知△ABC中,∶∶=1∶1∶,则此三角形的最大内角的度数是( ) A.120° B.60° C.90° D.135° 答案:A 【解析】 试题分析:由三角形三边的比例,不妨设三边长分别为、、,最大内角即为所对的角;由余弦定理得,所以最大角为120°,故选D. 考点:余弦定理.When he came back, he found the bag
he had ______________ over the seat was gone.
A. left hanging
B. left to hang
C.
left hung D. to leave
hanging