装卸烟花爆竹人员可以穿（）参加作业。
A、穿硬底鞋
B、纯棉衣服
C、带钉鞋
参考答案：B
On hearing the news that his mother was seriously ill, he went to his boss and asked for a _____. [ ]
A. vacation
B. holiday
C. leave
D. rest
非法宗教活动的主要表现有哪些？
