题干
— ________ Maria from Japan? — Yes, ________.
A：Are; they are
B：Is; she is
C：Does; she does
答案(点此获取答案解析）
B
— ________ Maria from Japan? — Yes, ________.
A：Are; they are
B：Is; she is
C：Does; she does
+ AI（OH）4— ===
向含有等物质的量的
、
的混合溶液中,慢慢滴加NaOH溶液,直至过量,发生以下离子反应: 
===
②
===AI（OH）4—③
===
===
发生反应的先后顺序正确的是
