某胎儿超声声像图如下,最可能的诊断为()
A.脐带绕颈1周
B.脐带绕颈2周
C.脑积水
D.正常声像图
E.脐带绕颈3周
参考答案:A
解析:
胎儿颈部可见“U”形压迹。
There is ____ as a free dinner in this world, as the saying goes, "No pains, no gains."[ ]
A. no such a good thing
B. such no good thing
C. no such good thing
D. such no a good thing
肺总量是指()。
A.尽力吸气后缓慢而又完全呼出的最大气量
B.平静呼气末肺内所含气量
C.平静吸气末肺内所含气量
D.最大限度呼气后肺内所含气量
E.最大限度吸气后肺内所含气量