邀请用户参与运维过程的目的不包括（）。
A.感知运维的实际情况
B.提出改进的建议
C.让用户承担责任
D.与运维团队熟悉互动
参考答案：C
完全信息
Not until the meeting was over（）that he had made a mistake in his speech.
A.he realized
B.did he realize
C.hehas realized
D.has he realized
