茜草素型
参考答案：茜草素型羟基蒽醌是指羰基仅分布在一侧的苯环上。
比一比，再组词。
拐（ ）处（ ）远（ ）亏（ ）
别（ ）外（ ）运（ ）云（ ）
The problem ___ we should put off the sports meet ___ at the meeting yesterday.
A．whether, came up
B．if, came up
C．that, mentioned
D．if, was refered to
