Do remember to be . We must avoid any possible risks when doing this dangerous chemical experiment—burns, poisonous gases or cuts from broken tubes.
A. curious
B. thoughtful
C. considerate
D. cautious
网友回答
A. curious
B. thoughtful
C. considerate
(答案→)D. cautious
解析：考察形容词词义辨析。A好奇的；B体贴的；C考虑周到的；D谨慎的；句意：一定要记住要谨慎，当我们在做危险的化学实验的时候，我们必须避免任何可能的危险—烫伤，有毒的气体或者被坏了的试管割伤。故D正确。