与话务量有关的两个因素是()和().
参考答案:呼叫强度(需求的频繁的程度);呼叫保持时间(每次服务所持续的时间)
--It’s reported that scientists have ________ an effective way to deal with H1N1.
--Really? That’s great!
A.caught up with
B.come up with
C.agreed with
D.compared with
气井开采初期,适合采用()工作制度。
A.定产量
B.定井口压力
C.定井底压差
D.定井底渗流速度