正确答案:

题目：具有撤销权的人知道撤销事由后明确表示或者以自己的行为放弃撤销权，撤销权即消灭，当事人不得反悔。（ ）

解析：权利人以书面形式明确表示放弃撤销权，或以其行为表示放弃撤销权的，则不得反悔，可撤销行为变为有效法律行为，撤销权消灭。

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举一反三的答案和解析：

[单选题]

way

解析：27．前面已经说了，在座位间进出不方便，是因为腿碍事。In the way挡道儿，固定短语。选项 D 是正确的。

[多选题]关于主诉，下列选项正确的有 （ ）

主诉是患者就诊的主要原因

主诉应包括患者主要的症状或体征及持续时间

主诉是患者感受到的最主要的病痛

主诉是医生根据患者的诉说归纳而成的

解析：BCDE

[单选题]学校对学生进行德育的最基本、最经常的途径是( )

各科教学

[单选题]Passage Two"Yes, I'll be ready at nine in the morning. Goodbye, dear, and thanks again. "It had not been an easy telephone call for Mrs. Robson to make. Her daughter had been very kind, of course, and had immediately agreed to pick her up and drive her to the station, but Mrs. Robson hated to admit (承认) that she needed help. Since her husband had died ten years before, she had prided herself on her independence (独立生活 ). She had continued to live in their little house, alone.

did not like asking people for favors

解析：

    40．答案为C  此考题为细节题，根据文章第1段的...but Mrs．Robson hated to admit(承认) that she needed help．Since her husband had died ten years before，she had prided herself on her independence(独立生活)．She had continued to live in their little house，alone，我们可以认定C为正确答案。