5、根據(jù)材料回答問題：
回答聽力第13題：_________。
6、回答聽力第16題：_________。
填空題
7、根據(jù)下列短文，回答題：
回答第31題。
簡答題
8、
9、·The line graph below shows the results of an experiment used to determine the effects of varying the speed of an assembly line on the production：
·0n the basis of the information from the graph，write a report deciding the effects of speed variation on production．
·Write120—140 words on your Answer Sheet．
10、
