合同保全的两种方法是（）。
A.代位权和支配权
B.代位权和撤销权
C.代位权和请求权
D.代位权和相对权
参考答案：B
Government officials cannot ________ accept bribes(受贿)，but in China quite a few take advantage of their power to break the rule .
A．legally
B．gradually
C．gratefully
D．sincerely
棒磨岗位正常运行中岗位工人应做哪些工作？
