This decision had removed the last ______ to the hostages' release.
A) solution
B) approval
C) dynamics
D) obstacle

单项选择题Some teenagers never even read a newspaper, ______ a book; they spend muchtime playing online games though.A) let outB) let aloneC) let go ofD) hold fast

单项选择题There is no extra Internet charge to send or receive video images, though youhave to ________for a free instant messaging service.A) check inB) log inC) sign upD) draw up

单项选择题She knew very well that failing her exams could _________her whole future.A) jeopardizeB)broadenC)arrangeD)brainstorm

单项选择题But, ___ reflection, I think I did the 'young guy' afavor by not giving him a job.A) inB) withC) onD) over

单项选择题The fight for the leadership gave a fascinating insight into the group's _______.A) masterB) syntacticC) dynamicsD) institution

单项选择题The girl ___ me along the aisle to my seat .A) accompaniedB) usheredC) conductedD) guided

单项选择题人们常说，身体是“三分治七分养”，对于这件事() A.反馈控制比前馈控制更重要 B.现场控制比反馈控制更重要 C.反馈控制比现场控制更重要 D.前馈控制比反馈控制更重要

单项选择题差别计件工资制是（）的内容之一。

A.泰罗的科学管理理论
B.法约尔的一般管理理论
C.韦伯的行政管理理论
D.现代管理理论

单项选择题The market _____ shows that the new products have enormouspotential if they are well developed.A) inspectionB) symbolC) supportD) survey

单项选择题In _____ with the new regulations, all tickets must bestamped.A) combinationB) accordanceC) connectionD)tune