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【多选题】
光纤的优点有 _____ 。A.
损耗低，中继距离长
B.
抗电磁干扰
C.
无串音干扰，保密性好
D.
光纤线径细、重量轻、柔软
E.
光纤的原材料资源匮乏
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【简答题】阅读理解。 Mrs Jones was still cleaning the house when her husband came back from work. She was wearing dirty, old clothes and mo stockings (长袜) and her hair was not tidy. She looked dirty and tired. Her h...
【单选题】维果茨基的文化一历史发展理论认为
A.
心理的实质就是社会文化历史通过语言符号的中介而不断内化的结果
B.
人类的心理发展规律受生物进化规律所制约
C.
个人的心理发展决定于生理成熟
D.
心理发展是跨文化心理学和历史心理学研究的核心内容
【简答题】非天生视障者会做有图像的梦,但是天生视障者就不会。不过他们还是会做梦,而且同样有趣且激烈,只是他们的梦除了视觉信息其他感官信息都有。
【简答题】Fill in the blanks with the words given below. Change the forms where necessary. character forever fortunate friendship lawyer soul respect precious military memory 1. You are _______________...
【简答题】It is the five days since the doctor operated on me. I’m going home tomorrow. Before I say goodbye to the doctor and nurses, I’d like to tell you how I had my operation( 手术 ). I was put to the operati...
【简答题】character forever fortunate friendship lawyer memory military precious respect soul 1. You are ________enough to have such understanding parents. 2.They ________the old man’s last ...
【简答题】A few days ago, I ran into (撞上) a stranger as he passed by. I said sorry to him, and he said, “Excuse me too, I wasn’t even watching for you.” We were very polite, this stranger and I. Then we went on...
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