He's heavy now. He ______________ eat vegetables. [ ]
A. have
B. have to
C. has to
答案:C
结合《春之声》试析王蒙小说艺术风格的新变化。
预防产后出血,下列哪些环节是正确的:
A.产前预防
B.产时预防
C.产后预防
D.产时常规给予缩宫素
E.以上都是