People like _________ healthy food. [ ]
A. many
B. lots of
C. a
答案:B
变压器的瓦斯保护在运行中应注意什么问题?
小儿时期以下列哪两经疾病最为多见?()
A.肺肝
B.肝肾
C.肺脾
D.脾肾
E.肺肾