答案:B
(2009·陕西高考)I still remember________to the Famen Temple and what I saw there.
A.to take
B.to be taken
C.taking
D.being taken
化学需氧量是表示水中()含量的指标。
A.还原性物质
B.有机物
C.无机物
D.氧化性物质