函数 f ( x ) " role="presentation"> f ( x ) 在 x 0 " role="presentation"> x 0 点极限存在,则 f ( x ) " role="presentation"> f ( x ) 在 x 0 " role="presentation"> x 0 处可导;
【判断题】As shown by the data released by Leapfrog, the 2012 data of the national rate for early elective deliveries is 17 percent, up from 11. 2 percent in 2010.