饮片折断面具纤维性的药材为（）
A．苦楝皮
B．牡丹皮
C．厚朴
D．苏木
E．木瓜
参考答案：C
Tom feared to go home after his failure in the exam because the ____ stream of discontent from his
parents would drive him crazy. [ ]
A. actual
B. gradual
C. efficient
D. constant
按年降水由多到少的顺序，排列正确的是（ ）
A．广州-武汉-北京-哈尔滨
B．哈尔滨-北京-武汉-广州
C．哈尔滨-武汉-广州-北京
D．广州-北京-武汉-哈尔滨
