搬炸药与拿雷管人同路行走时,两人之间的距离不得小于()。
参考答案:50m
Some oranges ________ in the bag Some chicken ______ at he table.[ ]
A. is ; is
B. are; are
C. are ; is
D. is ; are
中唐前期诗人的心态变化表现在哪些方面?