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当前学科：常用中药的鉴别
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常2～3个花序连在一起，呈长圆棒，苞片外表面紫红色或淡红色，内表面密被白色絮状茸毛的中药材是（）
A . 金银花
B . 辛夷
C . 洋金花
D . 款冬花
E . 西红花
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龟兹乐
Write down the numbers of the topic sentences in the following passages.①At the beginning of a writing course, many students earn low grades because they are inexperienced writers. ② They simply don’t know how to write an effective essay, and in the process of learning to do so, they make mistakes --- and low grades. ③Such grades affect the students’ confidence and morale, making writing an unpleasant task associated with anxiety and failure. ④As a result, students are discouraged; ⑤instead of working seriously on their writing, they spend time worrying about the easiest way to earn a better grade on the next paper--- usually by writing “safe” papers that are simple and correct but lacking in thought. ⑥Therefore, the assigning of traditional grades in a freshman writing course often works against the purpose of the course --- to help students learn to write better.
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