4月19JJ
ISSUE; The most quality of an organization is not to plan, to organizate, or to solving problems but rather to communicate others.
ARGUMENT;community and private hospitals' doctors are better than doctors of university hospitals because ....
1\DS , 一直线, SLOPE 为M ,在Y上的INTERCEPT 是b 一圆在同一作标, 圆心在原点, 半径是R, 问圆和线有几个交点? 1) R的平方 >b的平方 2)R的平方 > N的平方