道教标记中的八卦象征着自然界德八种自然现象中表述错误的是（）
A.天地
B.水火
C.风雨
D.山泽
参考答案：C
如图所示，AB是物体，A′B′是它在平面镜中所成的像，请根据平面镜成像的特点画出平面镜。
She felt _____ of having asked such a silly question when the audience couldn't help laughing.
[ ]
A. guilty
B. crazy
C. miserable
D. ashamed
