The rice ______ if you had been more careful.
A. would not be burning
B. would not burn
C. would not have been burnt
D. would not burnt
查看答案
According to the story, the game of chess was invented by（）
A. an American Indian
B. an ancient Indian official
C. an Indian king
D. an Indian officer
一混合物的组分A和B在2.0cm长的色谱柱上的保留时间分别为16.40分钟和 17.63分钟，而两个色谱峰宽分别是1.11分钟和1.21分钟。则其分离度R等于
A. 1.06
B. 1.60
C. 0.95
D. 1.50
E. 1.78
The passengers were robbed ______ all their money.
A. of
B. off
C. from
D. away
This story tells us （）
A. how cruel the king was
B. how clever the minister was
C. Sissa was a famous mathematician
D. how the game of chess came into being
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