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【简答题】You should spend no more than 40 minutes on this task. As part of a class assignment you have to write about the following topic. Millions of people every year move to English-speaking countries such ...
【简答题】When asking yourself whether you should spend or save, do you feel puzzled and controlled as I do?
【简答题】You should spend about 40 minutes on this task. Write about the following topic: As children become s, their social behaviour changes in some ways. What are the main differences between young chi...
【判断题】Study the academic writing task 1 and answer the questions which follow. You should spend 20 minutes on this task. The diagram below shows how oil is refined and supplied for use as fuel for cars, pla...
A.
正确
B.
错误
【简答题】You should spend no more than 20 minutes on this task. You have just read an article in your local newspaper, according to which the airport of yom city will be enlarged in order to add flights. Write...
【简答题】许多生物特别是动物，在不同生活季节中，数量有很大差异：春季繁殖，夏季数量增加到最多，到了冬季，由于寒冷、缺少食物等种种原因而大量死亡。第二年春季，又由残存的少量个体繁殖增多。因此形成一个如瓶颈样的模式（如图所示，●为抗药性个体），其中瓶颈部分即为动物数量减少的时期。 在图中所示的三年间，该生物种群是否发生了进化？（）为什么？（）
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