264. The two brothers once quarreled _____ each other _____ the money when their father died, and now they have made up their quarrel. A.with; about B. at; about C. to; over D. on; for 答案:A如图所示中,人所观察到的像( )A.由凹透镜所成的,这个像是虚像B.由凸透镜所成的,这个像是实像C.由凹透镜所成的,这个像能用光屏承接D.由凸透镜所成的,这个像不能用光屏承接