单选题请填写选项前的大写字母；填空题请填写单词。第21题：Only by adopting more creative approaches ______ to overcome present-day challenges.A.we can hopeB.can we hopeC.hope we canD.can hope we第22题：Some small businesses have neither the time ______ the resources to compete with these big businesses.A.orB.norC.andD.but第23题：This website may contain links to other websites ______ privacy practices may be different from ours.A.thatB.whichC.whoD.whose第24题：The company ______ its sales by an average of 10% per year since its establishment in 1993.A.increasesB.increasedC.is increasingD.has increased第25题：The flight scheduled ______ at 9 a. m. was delayed four hours due to the bad weather.A.to take offB.take offC.taking offD.to be taken off第26题：After they ______ the first super computers in the 1940s, scientists and engineers began to develop ways to create networks.A.createB.createdC.have createdD.has created第27题：Harvey finished ______ his research paper, but he needed to check it before submitting it to the professor.A.to typeB.typedC.typingD.type第28题：We will inform you of the result ______ the program is approved by the board.A.in order thatB.as ifC.even thoughD.as soon as第29题：Having your smartphone or computer ______ may cause a lot of trouble to you.A.damagedB.damageC.damagingD.to damage第30题：Anyone ______ works in the retail business needs to be good at calculating and communicating.A.whichB.whomC.whoD.what第31题：Effective feedback is well timed so that the employee can (easy) ______ connect the feed- back with his actions.第32题：Today, as natural resources become scarcer and manufacturing costs rise, recycling is (important) ______ than ever.第33题：With the work (do) ______, these scientists began to plan another research project.第34题：For social robots to work successfully, they have to (accept) ______ by humans.第35题：The company has taken several steps to speed up the (move) ______ of goods from the seller to the customer.第61题：Industrial robots are used for handling a variety of products for complex processes that are hard to realize by means of conventional machines.A.工业机器人可用于处理各种产品的复杂加工，使用传统机器很难实现这些加工。B.工业机器人会使用复杂的工艺制造大量产品，这些产品用传统机器则无法制造。C.工业机器人具有各种各样的类型与功能，它们的优势是传统机器所无法比拟的。第62题：Email application is closely related to the education level: the higher the education level, the more frequent the use of email.A.普及电邮就要从提高受教育程度入手，提高高等教育普及率是关键一步。B.电邮的使用与受教育程度密切相关：教育程度越高，电邮使用频率越高。C.使用电邮与否是与学历高低相关联的，受过高等教育的人使用电邮最多。第63题：If you are truly ambitious, you should be moving up every 2-3 years, either in the form of a promotion or a change of company.A.如果你不断努力，我相信2-3年以后你一定能够找到一家心仪的大公司。B.假如你真有理想，每2-3年该换一次工作，争取到一家大公司继续发展。C.如果你真有抱负，每2-3年就该有进步，要么升职，要么就换一家公司。第64题：We are honored to be invited to the seminar on computer technology to be held in Beijing next month.A.我们很高兴下月将参加在北京举行的计算机研讨会，相信会受益匪浅。B.受邀参加下个月在北京举行的计算机技术研讨会，我们感到十分荣幸。C.根据公司的要求，我们将于下月访问北京，并参观计算机技术研究会。