流脑是（）传染病
A.呼吸道
B.消化道
C.性传播
D.经血液传播
E.口粪传播
参考答案：A
-- Have you seen ______pen? I left it here this morning
-- Is it ______black one? I think I saw it somewhere
A．a；the
B．the；the
C．a；a
D．the；a
配光特性图
