扁平胸的特征是( )。
A.前后径短于左右横径的一半B.前后径增长C.前后径与左右径相等D.左右横径大于前后径E.前后径长于左右径
参考答案:A
解析:[知识点] 胸部检查
I'd like him to know that I don't want to be with him, but he never gets the _____. [ ]
A. message
B. news
C. information
D. word
FDDI是一种以以下哪种介质作为传输介质的高速主干网
A.双绞线
B.同轴电缆
C.光纤
D.微波