粉末中可见晶纤维的药材为
A.大黄
B.牛膝
C.苦参
D.黄芪
E.商陆
参考答案:C
解析:类似含有晶纤维的药材还有苦参、葛根、甘草、木通、鸡血藤、番泻叶(豆科)、黄柏、石菖蒲、麻黄。
In the dark street, there wasn’t a single person _____ she could turn for help.
A.to whom
B.who
C.from whom
D.that