文具用橡皮块 ( )
A.19
B.20
C.21
D.22
参考答案:D
解析:归税号4016.9200。文具用橡皮块是硫化橡胶制橡皮擦,按已列名货品子目归类。
()are designed to manage large bodies of information.
A.I/O ports
B.Printers
C.Database system
D.Keyboards
搪瓷管道具有优良的______性能,及良好的______性能,一定的______性能,良好的______性能和______性能。