打印机：墨盒
A．电脑：手指
B．电筒：电池
C．纸张：木材
D．楼房：电梯
参考答案：B
解析：打印机与墨盒是必然包含关系，电筒与电池也是必然包含关系。
益智题.
1.The injured dog had some difficulty going home. Every step he took,he slipped back two.
However, he still managed to get home. Why?
Answer:_____________________________________________________________
2. What question can never be answered by "yes" ?
Answer:________________________________________________________________
根据我国现行的法律，没有取得对外贸易经营权的企业、单位不得进出口货物，因此我国海关不接受未取得对外贸易经营权的单位向海关办理报关纳税手续。( )
