关税、进口环节增值税、消费税、船舶吨税应在白海关填发缴款书之日起30日内向指定银行纳税。 ( )
参考答案：错
3．字数不少于500字。
_______the thick clouds, you would find the kite in the sky easily.
A．Had it not been for
B．If it were not
C．If it had not been for
D．Were it not for
