下列哪一个是体内硫酸的供体（） - 查题网

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高等继续教育 / 生物化学

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网络远程教育期末考试【生物化学】模拟试题
下列哪一个是体内硫酸的供体（）
考题选项：
UDPG
PABA
PAPS
FMN

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生物化学

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livingsimilarexceptionwheneversinglehoweveraseventually isolatedsharedwhereverdifferent There is no denying that English is a useful language. The people who speak English today make up the largest speech community in the world with the ( 1 ) of speakers of Chinese. Originally they were small tribes of people ( 2 ) in northern Europe who left their homelands and settled in England. ( 3 ) in their island community, the various tribes used languages which became more and more similar to each other and less and less like the other languages of Europe. ( 4 ), the language had enough uniformity to be used by all speakers in England. The people were united into a speech community through their ( 5 ) language. In time, people moved from the small island to many parts of the world, taking their language with them and thus still remaining members of the English speech community ( 6 ) they settled.A speech community is ( 7 ) to other kinds of communities. The people who make up the community share a common language. Often they live side by side, ( 8 ) they do in the neighborhood, a village, or a city. More often they form a whole country. Many nations are composed of a ( 9 ) major speech community. National boundaries, ( 10 ), are not always the same as the boundaries of a speech community. Some nations are made up of many speech communities. A speech community, then, is any group of people who speak the same language no matter where they happen to live.大学英语语法