羟基葸醌UV光谱由醌样结构中的羰基引起的弱吸收峰是
A.230nmB.240~260nmC.262~295nmD.305~389nmE.>400nm
参考答案:E
正式挂失解挂失、挂失补发的受理条件:该账户已挂失,挂失后满()天。
A、3
B、5
C、7
D、9
After project control, organizational process assets are updated. Wherever checklists are used, the completed checklists should become part of the ______ .
A.project's records
B.project files
C.project quality management plan
D.lessons learned documentation