八七会议结束了“右倾”投降主义错误，遵义会议纠正了“左倾”错误。
参考答案：对
Yesterday Frank worked deep into the night, this is the second time this week he's stayed up, ____ ? [ ]
A. didn't he
B. isn't it
C. isn't this
D. hasn't he
伤后仅有表皮红、肿、痛，数日自愈，不留瘢痕者为几度烧伤（）
A.Ⅰ度
B.浅Ⅱ度
C.深Ⅱ度
D.Ⅲ度
E.Ⅳ度
