对于实行关税配额证管理的货物，对外贸易经营者经国家批准取得关税配额证后可允许按照关税配额税率征税进口，否则不得进口。
参考答案：错
桑螵蛸、海螵蛸均有的功效是（）。
A.固精缩尿
B.补肾助阳
C.收敛止血
D.制酸止痛
E.收湿敛疮
After abandoning ship，you should deploy the sea anchor from a liferaft to（）.
A.keep the liferaft from capsizing
B.navigate against the current
C.keep personnel from getting seasick
D.stay in the general location
