下列有关门脉高压症的叙述，错误的是A．门静脉的主干是肠系膜下静脉和脾静脉 B．脾静脉

Configuration management is______.

A．used to ensure that the description of the project product is correct and complete

B．the creation of the work breakdown structure

C．the set of procedures developed to assure that project design criteria are met

D．a mechanism to track budget and schedule variances

My aunt works ________ a newspaper _______ a reporter.

A．as, for

B．for, as

C．with, for

D．for, with

简述96年11月1日中国沿海内河船舶保险条款的除外责任。

本质安全是安全生产预防为主的( )体现，也是安全生产管理的最高境界。

A．惟一

B．根本

C．主要

D．切实

对不允许自起动和直接起动的电动机应有（）

A、漏电保护

B、断相保护

C、欠压保护

D、零压保护