It is truethat infrared radiation.
A is not detectable to humans.
B looks brighter than visible light.
C is visible light reflected off an object.
D has longer waves than thoseof visible light.
对于需要进口许可证的商品,必须在进口前向商务部或各省、市 (自治区)海关办理进口许可证等批件。 ()
A. 正确
B. 错误
【C4】______
A. fetch
B. send
C. carry
D. drive
人境报检时,应填写人境货物报检单,并提供合同、发票、提单等有关单证。 ()
A. 正确
B. 错误