必须实施的进出口商品检验，是指确定列入目录的进出口商品是否符合国家技术规范要求的合格评定活动。( )
参考答案：对
14个32的和是______，480的20倍是______．
5. There sat an old man in a black coat, his head in his hands thinking.
A．put
B．with
C．and
D．for
