The system has been designed to give students quick and easy ____  to the digital resources of the library.

A．access

B．passage

C．way

D．approach

中国采用了由FEFCO/ASSCO制定的国际纸箱箱型标准，按照这一标准，纸箱结构可分为（）和组合型两大类。

A.分散型

B.独立型

C.单一型

D.基本型