题干
The beginning of novel is interesting, so I'd like to read it
A：a
B：an
C：the
D：/
答案(点此获取答案解析）
C
The beginning of novel is interesting, so I'd like to read it
A：a
B：an
C：the
D：/
is 
C（气）＋D（气），当下列物理量不再变化时，不能表明反应已达平衡的是（ ）