陈复礼是中国()摄影的泰斗.
A.风光
B.抽象风光
C.画意
D.环保摄影
参考答案:C
用于根管冲洗剂的过氧化氢溶液浓度是()
A.1%
B.15%
C.2%
D.30%
E.3%
You should be able to () right from wrong.
A.perceive
B.distinguish
C.sight
D.observe