【简答题】What is the equation of a line perpendicular to 3x=2-y with the y-intercept 8?
【单选题】朱某,男,40岁。患有“胃溃疡”,于饱餐后突然出现上腹剧烈疼痛,腹肌紧张,有压痛、反跳痛, 肝浊音界消失,首先应判断为
【单选题】朱某,男,40岁。患有“胃溃疡”,于饱餐后突然出现上腹剧烈疼痛,腹肌紧张,有压痛反跳痛。肝独音界消失, 首先应判断为
【单选题】In the standard (x,y) coordinate plane, what is the slope of a line that is perpendicular to 2x- 3y = 9 ?
【判断题】根据直线的投影,判定CD直线为侧垂线。According to the given projections , the line of CD is regarded as a V-perpendicular line in space.【图片】