椅高
参考答案:
椅前缘最高点离地面的高度,应与小腿高相同,等于腓骨头点高或再低1cm。
Three minutes later, more than ten policemen turned up at the spot the accident happened.
A.which
B.what
C.where
D.that
壶腹周围癌不包括
A.胰头癌
B.胰体癌
C.十二指肠癌
D.胆总管下端癌
E.壶腹癌