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：（）

Bark about 0.2 to 0.8 mm thick occurring in closely packed compound quills made up of single or double quills．Which of the following is not true（）