题目

在对某自然保护区内甲、乙两个不同物种的种群数最进行了调查之后，又开展了连续4年的跟踪调查，计算其L值（L=当年末种群个体数量/前一年来种群个体数量），结果如图所示。下列关于这4年调查期间的种群致最变化的叙述，错误的是A. 第1年末甲乙两种群的增长速度不一定相等B. 第2年来乙种群数最不一定大于甲C. 第3年来乙种群数量达到了最大值D. 这4年中甲种群每年增加的数量是相等的We arrived in Spain for the first time a few weeks ago.I decided to   21    a car because we had sold the one we had in England before  22    home.Yesterday the sales office rang us to say the car was  23  .I had tried out a model like it before,but as I was not yet  24    driving in this city,my wife did not want me to collect it   25    so we went together to   26    it.We paid for the car and   27    the papers.They told us that there was   28    petrol(汽油) to take us to a garage,where we could fill up.The   29    garage to the office was about 100 yards away and we got there   30   .But when I turned into the main road I suddenly saw a lot of cars racing  31   me.I got out of   32    as fast as I could by backing into the garage  33    and the man behind   34    me. “It’s such a problem to   35    to drive on the right side,isn’t it?”my wife said.“Yes,if only I had had a few lessons for   36   ,”I replied.“You had better go   37    on the way home,”my wife said.“You’d be sorry if you had   38    on the first day,wouldn’t you?”While we were talking,the man behind got out of his car and said in good English,“Would you mind telling me   39    you are thinking of leaving?   40    are you going to sit in your car all day?” A.borrow           B.drive             C.buy               D.choose A.leaving          B.making                C.returning         D.getting A.right            B.ready             C.fixed             D.sold A.sure of      B.satisfied with   C.interested in      D.used to A.on my own        B.right away            C.in a hurry            D.on the way A.receive          B.bring             C.order             D.fetch A.accepted         B.wrote             C.signed                D.copied A.little           B.enough                C.much              D.no A.best             B.nearest           C.quickest          D.cleanest A.lately          B.directly              C.safely                D.slowly A.after           B.with              C.around                D.towards A.their way           B.the garage            C.their sight           D.the car A.at last         B.once more         C.as usual          D.as well A.caught          B.cheered           C.shouted at            D.chatted with A.prepare         B.continue          C.choose                D.remember A.discussion      B.adventure         C.experiment            D.practice A.carefully           B.smoothly          C.quickly               D.differently A.an error        B.a problem     C.an accident       D.a headache A.when            B.why               C.how               D.what A.For             B.Or                    C.But               D.So