Danny is always hot _____________ cold in winter. [ ]
A. and
B. in
C. or
D. with
答案:C
治疗痰浊、血瘀或寒凝气滞所致的胸腹满闷冷痛,宜选用
A.全蝎B.蜈蚣C.石菖蒲D.苏合香
何谓折角车流?双三级六场编组站减少折角车流的方法有哪些?