档案文献编纂工作有哪些环节（）。A．选题； B．加工编排； C．查选； D．档案文献

关于HELLP综合征，下列描述错误的是()

A．溶血

B．肝酶升高

C．血小板减少

D．常与重症妊娠期高血压疾病并存

E．常与特发性血小板减少性紫癜并存

In low-speed network，it is usually adequate to wait for congestion to occur and then react to it bytelling the source of packets to slow down．In high-speed networks，this approach often works poorly，because in the (71) between sending the notification and notification arriving at the source，thousands of additional (72) may arrive．In ATM network，a major tool for preventing (73) is (74) control．When a host wants a new virtual (75) ，it must describe the traffic to be offeredand the service expected．

（71）处填（）。

A．interval

B．time

C．slot

D．delay

下列因素中，属于西气东输工程建设所必须考虑的因素是（  ）

①沿线地形特点  ②沿线城市分布  ③沿线天然气资源的分布  ④沿线交通发展情况

A．①②

B．③④

C．②④

D．②③

罪犯（）、（）、（）不参加计分考核。