The tuber tastes bitter and slightly acrid and has a warm property．What is the taste and property of the tuber（）

Among the medicinal preparations now widely used are powders,granules,pills,extracts,tablets and injections．Which of the following is not mentioned in the sentence（）

Liquorice Consists of the dried,unpeded roots and stolns,and contains not less than 4．0% of glycyrrhizinic acid．Which of the following is true（）

Foreign matter：Not more than 3% of stem with a diameter exceeding 5 mm．关于杂质的规定，以下正确的是：（）