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【单选题】
The convenience stores in poor neighborhoods have ______.A.
helped the poor out of their difficulties
B.
made the poor people even poorer
C.
provided an unnecessary service
D.
shown interest in training the poor
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举一反三
【简答题】Nisha Somaia suggested that in India people usually express their disapproval of those who are overweight in a______way.
【单选题】What does the example of India illustrate?
A.
Wealth people tend to have fewer children than poor people.
B.
The upper class population is 80% smaller than that of the tribes.
C.
Natural selection hardly works among the rich and the poor.
D.
India is one of the countries with a very high birth rate.
【单选题】下列哪种溶液属于平衡盐溶液
A.
复方氯化钠溶液
B.
5%葡萄糖氯化钠溶液
C.
1.86%乳酸钠溶液和复方氯化钠溶液以2：1 之比配制
D.
1.86％的乳酸钠溶液和复方氯化钠溶液以1：2之比配制
E.
1.25%碳酸氢钠和等渗盐水以2：l之比配制
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