关于早产儿的外观特点,下述哪项是错误的()
A.皮肤发亮,水肿,毳毛多
B.头发分条清楚
C.耳廓软骨发育不良,耳廓紧贴颞骨
D.乳腺结节<4mm
E.男婴睾丸未进入阴囊
参考答案:B
—Does your grandpa often walk the dog after supper?
— Yes, _________ bad weather stops him.
A.unless
B.because
C.though
D.since
大跨径石拱桥拱圈采用分环分段砌筑的目的之一是减小拱架的施工荷载。 ( )