预制轨道板分别为（）和（）两种。
参考答案：普通A型板；框架形
吸收快能迅速发挥疗效的剂型是( )
A．丹剂B．散剂C．丸剂D．汤剂E．冲剂
The declaration of import goods shall be made to the Customs by the importer within ______ days from the date of the declaration of the arrival of the means of transport.
A．seven days
B．fourteen days
C．fifteen days
D．thirty days
