题干
Here is bike my uncle sent me last week. I believe it's fantastic one.
A：a; a
B：the; the
C：the; a
D：a; the
答案(点此获取答案解析）
C
Here is bike my uncle sent me last week. I believe it's fantastic one.
A：a; a
B：the; the
C：the; a
D：a; the
2SO3，平衡时SO3为n mol，在相同温度下，分别按下列配比在上述容器中放入起始物质，平衡时SO3的物质的量可能大于n的是