蛋白质-能量营养不良主要病变部位是( )
A．心脾
B．脾胃
C．脾肺
D．心肝
E．肝脾
参考答案：B
Television lets us see history in the making. We can watch sports, political debates, trials and even wars ________．
A．breaking out
B．broken out
C．being broken out
D．broke out
准确度是指一组测定值的平均值与真实值之间的符合程度。（）
