需制绒的药物是()。
A.麻黄
B.竹茹
C.谷精草
D.灯心草
E.苍耳子
参考答案:A
Have you ever met with this case in your life________you can't understand others even if they have
said something several times?[ ]
A. where
B. what
C. that
D. which
查找“新型大气激光通信装置”“太阳能路灯的电源系统控制装置”的专利。写出专利号、公开号、主分类号、分类号、申请人姓名(申请人和专利号最重要)