早期慢性支气管炎肺部的X线表现是()
A.无特殊征象
B.两肺纹理紊乱,增粗
C.胸廓扩张肋间增宽
D.双肺野片絮状阴影
E.双肺野网状或条索状阴影
参考答案:A
Not much people realize that apples have been cultivated for over 3,000 years.
A.Not many
B.Not enough
C.Without many
D.No many
胎儿腹围测量一般用于孕几周,可以补充胎儿双顶径估侧胎龄的不足()
A.9~12周
B.16~20周
C.28~32周
D.36~42周
E.20~28周