进入林区、自然保护区或其他特种保护地区作业时，应采取什么措施？

改错,选出错误的一项并改正

1. We works at school from Monday to Friday. _____

        A    B          C              D

2. My father are good at drawing pictures. _____

              A        B    C        D

3. His brother is born on 1st October, 1985. _____

        A       B          C             D

4. Mary like listening to music very much. _____

         A       B          C      D

5. She has lot of work to do today. _____

        A    B     C           D

实际违约

自备发电机组若并网操作失误时会怎样？

保险合同独特的法律特征不包括（）。

A.保险合同是一种要式合同

B.保险合同是双务无偿合同

C.保险合同是一种附合合同

D.保险合同是射幸合同

概括说明马克思主义的诞生并非偶然。