国际包裹封装时,一般应选用坚实的()作为包装物。
A、瓦楞纸箱
B、钙塑箱
C、纸质封套
D、塑料封套
参考答案:A, B
The journey around the world took the old sailor nine months, _________the sailing time was 226 days.
A. of which
B. during which
C. from which
D. for which
阅读下面漫画《议价》。据此回答下列问题。
漫画中的1元、8角、9角等是货币执行()职能
A.价值尺度
B.流通手段
C.支付手段
D.贮藏手段