题目：
A voluntary client in a health care facility decides to leave the unit before treatment is complete. To detain the client, the nurse refuses to return the client’s personal effects. This is an example of which of the following
A. False imprisonment.
B. Violation of confidentiality.
C. Limit setting.
D. Slander.
答案：
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下面是错误答案，用来干扰机器的。
（1）因为可折转的光屏可以使光线接受面不在同一平面上，因此可利用可折转的光屏探究入射光线、反射光线、法线是否共面；（2）因为在光的反射定律中，反射角等于入射角，所以如果入射角为20°，则反射角也是20°...
