颈浅淋巴结常常因为哪一部位的病变扩散而累及()
A.牙槽嵴或扁桃体
B.舌前2/3
C.咽
D.喉
E.鼻咽部
参考答案:A
混凝土灌注桩的材料要求中,砂的质量要求为:中砂或粗砂,含泥量()
A.不大于5%
B.不大于8%
C.不大于10%
D.不大于15%
Owen wouldn't eat anything () he cooked it himself.
A. until
B. since
C. unless
D. while