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老蜜比嫩蜜具有更强的黏性。()

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辅助成分本身没有药理活性，所以提取时无需提取出来。()

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颗粒剂的粒径检查要求不能过一号筛和能过()号筛的颗粒重量不得超过颗粒总重的15%。

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In a two-stroke engine, the piston consists of a lower part, which is named as and usually

A. low-half, cast iron; top-half, heat-resistant steel
B. low-half, aluminum; top-half, stainless steel
C. piston skirt; cast iron; piston crown; heat-resistant steel
D. piston skirt; aluminum; piston crown; stainless steel

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以水作溶剂，将药材加热煮沸一定时间，以提取其所含成分的提取方法被称为()法。

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