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Section B Conversation 2 第10题
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Section C“_____11____”,the slogan of the Beijing 2008 Olympic Games, is an embodiment of the ____12_____of hundreds and thousands of people.”It expresses the ____13_____of a great nation with a long history of 5000 years and on its way towards modernization, which is committed to _____14______development, a harmonious society and people’s _____15______,”said Liu Qi, President of the Beijing Olympicing Committee for the Games of the XXIX Olympic.
Section D16.What do many young people think of the Internet?It is a good place to________________________________17.What can young people practice on the Internet?They can practice ______________________by talking with people.18.What is important for youngpeople to know when talking with strangers online?Talking with strangers online can be___________________________.19.What should you do to protect yourself online?Never give your________________________to anyone.20..What should you do if you feel uncomfortable with the topics of conversation?Stop_________________________.
诱变处理后植株成活率约50％的剂量为（）。
辐射育种中使用的辐射源只会引起作物发生变异，人若受到照射不会有不良影响。（）
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