质量是SI基本单位，其单位名称是千克，单位符号kg
参考答案：对
— It's nice. Never before ________ such a special drink!
— I'm glad you like it. [ ]
A. I have had
B. I had
C. have I had
D. had I
欧盟输往中国的货物使用阔叶树木材做木质包装的，可由出口商出具《使用非针叶树木质包装声明》。 ( )
