【简答题】Are you a compulsive spender,or do you hold on to your money as long as possible? Are you a bargain hunter? Would you rather use charge accounts than pay in cash? Your answers to these questions will ...
【判断题】电话售票员女性上班期间可以化浓妆,对方也看不见。()
【简答题】已知椭圆 x 2 a 2 + y 2 b 2 =1(a>b>0) 的离心率为 6 3 ,长轴长为2 3 . (1)求椭圆的方程; (2)试直线y=kx+1交椭圆于不同的两点A、B,以AB为直径的圆恰过原点O,求直线方程.
【简答题】Are you a compulsive spender, or do you hold on to your money as long as possible? Are you a bargain hunter? Would you rather use charge accounts than pay cash? Your answers to these questions will re...
【单选题】Are you a compulsive spender, or do you hold on to your money as long as possible? Are you a bargain hunter? Would you rather use charge accounts than pay cash.* Your answers to those questions will r...
A.
Because people can buy love with money.
B.
Because people spend money to express love.
C.
Because money is basic to love.
D.
Because when people express love, they must use money.
【单选题】根据以下内容回答题: Adam Smith,writing in the 1770s,was the first person to see the importance of the divi-sion of labor and to explain part of its advantages.He gives as an example the process by which pins w...
A.
take advantage of the division of the labor
B.
introduce the division of labor into England
C.
understand the effects of the division of labor
D.
explain the causes of the division of labor
【简答题】已知椭圆: x 2 a 2 + y 2 b 2 =l(a>b>0)的一个顶点坐标为B(0,1),若该椭圆的离心率等于 3 2 . (1)求椭圆的方程. (2)Q是椭圆上位于x轴下方的一点,F 1 F 2 分别是椭圆的左、右焦点,直线QF 1 的倾斜角为 π 6 ,求△QF 1 F 2 的面积; (3)以B为直角顶点作椭圆的内接等腰直角三角形ABC,判断这样的三角形存在吗?若存在,有几个?若不存在,...
【简答题】大学教育 大学教育是人类文明的体现,大学教育水平则反映社会的文明程度。中国的大学教育近些年快速发展,有助于普及高等教育。大学的数量和大学生的人数增长迅速,在2010年,在校大学生人数就已经达到了3000万。大学教育为社会培养了大量的专业人才,他们是国家未来发展的核心动力,因此,大学教育极大地促进了社会的进步。但中国的大学教育也面临着不少的问题,如专业设置不合理、教学质量下降、毕业生就业难等。 重点...
【判断题】电话售票员女性上班期间可以化浓妆,对方也看不见。( )
【单选题】It was not until 1911, _______ the first vitamin was identified, _______ people realized the importance of it.