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【单选题】
神舟十号飞船计划于2013年6月上旬发射，三名航天员将再次访问天宫一号。 天宫一号资源舱舱段使用了铝一锂合金材料代替传统材料，从而为舱段减重10%。铝一锂合金属于A.
无机非金属材料
B.
金属材料
C.
有机合成材料
D.
复合材料
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】热轧带肋钢筋牌号为(),强度等级为()、()、(),是由普通低合金钢在高温状态下轧制而成,表面形状多为月牙纹。
【简答题】A woman is at the movies,and she is enjoying the movie very much. A man in the next seat begins to look for something on the floor under him. The woman is angry (生气的)and says“What are you doing ther...
【简答题】A．The woman is helpful. B．The woman is thankful. C．The woman is sorry. D．The woman is offended.
【简答题】热轧钢筋: ()钢、普通()钢在()状态下轧制而成 。
【简答题】阅读理解。 A young woman was diagnosed with a terminal illness (不治之症) and given three months to live. So as she was getting her things 'in order', she asked her pastor (牧师) to come to her house to discuss ...
【单选题】What has the woman been doing for a living since l 9887
A.
designing fashion items for several companies
B.
working for a world—famous American company
C.
serving as a sales agent for Burberrys
【单选题】What does the man ask the woman to do at the end of the conversation?
A.
Make a phone call lo him.
B.
Pack towels and sun cream.
C.
Take some sandwiches.
【简答题】A．The woman is confident. B．The woman is sick. C．The woman is worried. D．The woman is feeling better.
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【简答题】A．The woman is helpful. B．The woman is thankful. C．The woman is sorry. D．The woman is offended.