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【判断题】
三价铬能参与人体正常的糖代谢过程,而六价铬有较强毒性,为致癌物质,并易被人体吸收而在体内蓄积。也就是说对人体来说,六价铬比三价铬毒性大。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】Now people use “pen” for any writing tool though it originally denotes “feather”. This phenomenon can be explained by_____ .
A.
etymological motivation
B.
onomatopoetic motivation
C.
morphological motivation
D.
semantic motivation
【单选题】Hunting was originally a means of providing food, but it has now become a sport. Though in some parts of the world there are still people who hunt wild animals to provide themselves with food, in Engl...
A.
To catch the wild animals.
B.
To catch the birds.
C.
To catch the fish.
D.
To provide food.
【单选题】Being tall gives Yao Ming a(n) _______ over other basketball players.
A.
advantage
B.
benefit
C.
advance
D.
profit
【多选题】修复体咀嚼效率比较?
A.
种植义齿＞固定义齿＞可摘义齿
B.
种植义齿＞可摘义齿＞固定义齿
C.
固定义齿＞种植义齿＞可摘义齿
D.
固定义齿＞可摘义齿＞种植义齿
E.
种植义齿＞固定义齿＞覆盖义齿
【简答题】战国时期法家思想的集大成者是___________。
【简答题】法家思想的集大成者是__________。
【单选题】He got gradually _____ in the case, though he didn't intend to originally.
A.
connected
B.
related
C.
interfered
D.
involved
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