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(中山大学2009年考研试题)活细胞中tRNA的空间结构呈“三叶草”型。
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(复旦大学2008年考研试题)核酸与蛋白质一样也有等电点。
For Questions 6-10, you will hear a passage about health differences between men and women. While you listen, complete the sentences and answer the question. Use not more than 3 words for each answer. You will hear the recording twice. You now have 25 seconds to read the sentences and the question below. Experts at the Centers for Disease Control say ______ increases the risk of problems such as high blood pressure, heart disease and some cancers.
For Questions 6-10, you will hear a passage about health differences between men and women. While you listen, complete the sentences and answer the question. Use not more than 3 words for each answer. You will hear the recording twice. You now have 25 seconds to read the sentences and the question below. In the United States, what is the leading cause of death from liver failure
Which of the following does not have plenty of flavonoids according to the speaker
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