单项选择题
One way to conquer the fear of speaking in front of an audience is to _____. A、adopt a power stance in a quiet place of one’s own beforehand B、make oneself as small as possible by shrinking into oneself C、avoid making eye-contact with members of the audience D、speak in a low voice so as not to draw attention to oneself
问答题 斗鸡眼的瞳孔间距一般是多少
问答题 如何治疗沙眼引起的流泪
单项选择题 左图为素材，在图像软件调节中灰色区域出现提示的时候，以下描述正确的是？
