题目

He ______very important information in his report. That was why he was criticized by his boss. A. left out   B. left behind   C. left off  D. left for 答案：A 解析:  leave out 遗漏, 省去,  “遗漏了重要信息正是被他老板批评的原因”。leave behind不带走，遗忘； leave off停止做某事；leave for动身前往。如图，已知△ABC中，AB=AC，D是BC上一点，且AD=DB，DC=CA，则∠BAC= °．