我国基金信息披露的制度体系分为( )层次。 A．困家法律 B．部门规章 C．规范性

The WBS and WBS dictionary are completed．The project team has begun working on identifying risks．The sponsor contacts the project manager，requesting that the responsibility assignment matrix be issued．The project has a budget of U.S．$10000 and is taking place in three countries using 14 human resources．There is little risk expected for the project and the project manager has managed many projects similar to this one．What is the next thing to do ？（）

A．Understand the experience of the sponsor on similar project

B．Create an activity lis

C．Make sure the project scope is define

D．Complete risk management and issue the responsibility assignment matri

细菌性痢疾愈后不能获得牢固免疫，其原因包括：（）

A.细菌停留在肠壁局部

B.菌型多

C.型别之间缺乏交叉免疫性

D.尚无有效的疫苗

E.易产生耐药性菌株

活动扳手的规格以其（）来表示。

A、开口宽度

B、长度

C、开口长度

液相色谱法检测甲萘醌含量，检测器检测波长为（）nm。

A、190

B、220

C、250

D、326

是前列腺素的类似稳定物（）

A.奥美拉唑

B.西咪替丁

C.雷尼替丁

D.米索前列醇

E.法莫替丁