Everyone _________ tired and hungry.[ ]
A. am
B. is
C. are
答案:B
临产后的胎头迟迟不入盆,测量的径线最有价值的是()
A.骶耻外径
B.对角径
C.髂棘间径
D.髂嵴间径
E.坐骨棘间径
出入境检验检疫