针刺头面、胸腹部及四肢部的部分腧穴宜选()
A.仰靠坐位
B.俯伏坐位
C.仰卧位
D.侧卧位
E.俯卧位
参考答案:C
--- I’m sorry I ________ make it yesterday. I ________, but I was really busy.
--- That’s fine. I know you are usually busy at this time of year.
A.couldn’t, intended to have come
B.didn’t, intended to have come
C.couldn’t, intended to come
D.didn’t, intended to come
如果(x-3)(x2+bx+c)的积中不含x2和x项,那么b=( ), c=( )。