使用铁路集装箱装运危险货物时,集装箱使用费加()。
A、10%
B、20%
C、30%
参考答案:B
She likes eggs, meat __________ milk, but I don't like meat, milk __________ eggs.
A.and; or
B.or; or
C.and; and
D.but; and
能够稳定传播爆轰的最小装药直径为()直径。