题目

一密闭容器中加入葡萄糖溶液和酵母菌，1小时后测得该容器中O2减少24 mL，CO2增加48 mL，则在1小时内酒精发酵所消耗的葡萄糖量是有氧呼吸的           ( ) A.1/3      B.1/2      C.2倍      D.3倍 答案：D Once a taxi driver taught me a lesson.Normally it costs hundreds of dollars to learn in school and I can’t1 .But I just paid $10 for the taxi ride. I had flown to London to attend a meeting.I 2 to stay there for 3 days.A clean taxi appeared.The driver rushed to open the door for me and make sure I was 3 seated before he closed the door.As he got into the taxi,he mentioned that the neatly folded newspaper 4 me was for my use.He then showed me several tapes and asked me which of 5 I would enjoy.Well! I couldn’t believe the service I was receiving! I said,“I believe you are 6 your work.You must have a story to tell.” “Right,” he replied,“I used to be in a big company.And I got tired of thinking my best would never be good enough.I 7 to find a job that I could be the best.I knew I would never be a rocket scientist,but I love driving cars and 8 service.Then I become a taxi driver.One thing I know for sure,to be good in my business I could simply just meet the expectations of my 9 .But,to be great in my business,I have to do more than they 10 ! I like both the money and pleasure of being great.” Did I tip(给小费)him a lot?Of course! ( ) 1.A.repair B.lose C.develop D.afford ( ) 2.A.was supposed B.was used C.showed up D.came out ( ) 3.A.differently B.easily C.comfortably D.gradually ( ) 4.A.beside B.behind C.inside D.with ( ) 5.A.these B.this C.that D.those ( ) 6.A.safe in B.proud of C.relaxed in D.tired of ( ) 7.A.made a decision B.took notes C.made a mistake D.paid attention ( ) 8.A.offending B.providing C.pretending D.fetching ( ) 9.A.parents B.children C.wife D.customers ( )10.A.attempt B.chase C.expect D.create