题目

June lst is ___________ Day. My sister is happy on that day every year. A. Women’ s        B. Fathers’           C. Teachers’          D. Children’ s 答案：C 【解析】句意：六月一日是儿童节，每年那一天我的妹妹都非常开心。 Women’ s妇女的；Fathers’ 父亲的；Teachers’ 老师的；Children’ s儿童的。根据句意June 1st和常识可知，6 月1日是儿童节。故应选D。17．已知椭圆C：$\frac{{x}^{2}}{2}$+y2=1，若一组斜率为$\frac{1}{4}$的平行直线被椭圆C所截线段的中点均在直线l上，则l的斜率为（　　）A．-2B．2C．-$\frac{1}{2}$D．$\frac{1}{2}$