According to the passage, why does a drink bring serious results to a smoker？
A. Because it may act as a dissolving agent.
Because he is malnourished.
C. Because the liver can't dispose of alcohol
D. Because the liver has to clean the toxins.
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Which of the following is NOT true？
A. Different people may have different personalities.
B. People differ from each in appearance.
C. People can learn to recognize faces.
D. People can describe all the features of others.
According to the passage, the parity system is used to ______.
A. encourage farmers to produce more grains in the future
B. lower the cost of producing agricultural product
C. determine the prices below which grains will not be sold
D. ensure that the farmers' interest is properly protected
It can be inferred that the common agricultural policy aims to ______.
A. avoid competition among its member nations
B. limit production and improve farmland
C. ensure a balance between production and consumption
D. encourage free competition among its member nations
某页式存储管理系统中的地址结构如下图所示，则(27)。
A. 页的大小为1KB，最多有8M页
B. 页的大小为2KB，最多有4M页
C. 页的大小为4KB，最多有1M页
D. 页的大小为8KB，最多有2M页
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