There is no extra Internet charge to send or receive video images, though youhave to ________for a free instant messaging service.
A) check in
B) log in
C) sign up
D) 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

单项选择题Women's magazines are often __________ to be superficial, but we know that isnot true.A) treatedB) perceivedC) graduatedD) interested

单项选择题If a system, relationship, or discussion ______ down, it fails because there is aproblem or disagreement.A) goesB) breaksC) takesD) stays