寻租
参考答案：
为获得和维持垄断地位从而得到垄断利益的活动，这是一种非生产性的寻利活动。
能润肠通便的药物有（）
A.火麻仁
B.决明子
C.桃仁
D.郁李仁
E.砂仁
Network managers have long (140) practical voice-over-IP (VOIP) solutions. VOIP (141) ease network management and decreases costs by converging a company’s telephony and data infrastructures into one network. And a VOIP solution implemented at a company’s head-quarters with far-reaching branch offices can (142) tremendous amounts of (143) in long distance phone bills, provided that solution delivers POTS-like voice (144) over the Internet.
（141）是（）
A.promise
B.promised
C.promises
D.promising
