单选题：Questions 13 to 15 are based on the conversation you have j

  • 题目分类：英语六级
  • 题目类型：单选题
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题目内容：
Questions 13 to 15 are based on the conversation you have just heard. A．Bad weather.
B．Human error.
C．Breakdown of the engines.
D．Failure of the communications system.

参考答案：
答案解析：

关于粉碎目的的叙述，正确的是

关于粉碎目的的叙述，正确的是A．制剂的需要 B．利于浸出有效成分 C．有利于新鲜药材的干燥与贮存 D．有利于提高稳定性 E．增加难溶性药物的溶出

分类：英语六级  题型：单选题
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用煅淬法炮制的中药是

用煅淬法炮制的中药是A．白矾 B．牡蛎 C．石膏 D．炉甘石 E．石决明

分类：英语六级  题型：单选题
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What was recommended for Ph. D. s and postdoctoral research

What was recommended for Ph. D. s and postdoctoral researchers?A．They meet the

分类：英语六级  题型：单选题
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