报关企业有报关权但没有进出口经营权。
参考答案：对
I toured Jiu Zhai Gou, I was deeply impressed with its beautiful scenery.
A．For the first time
B．At first
C．It was the first time
D．The first time
重量百分比浓度是：用（）的重量占全部溶液重量的百分比表示。
A.溶质
B.溶液
C.水分
D.液体
