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【简答题】
在铁碳合金相图上,按含碳量和室温平衡组织的不同 , 将铁碳合金分为六种,即 、 、 、 、 和 。
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反馈参考答案：
举一反三
【简答题】阅读理解。 I am a boy from the USA.Now I go to school in China.I have Chinese food now.I like it.I usually have some porridge and milk for breakfast at home with my parents.Sometimes I have some small cake...
【简答题】On a cold November afternoon, my mother and I were walking back home from a pizza store. We had bought many things. We were dressed , and I was feeling a little as I was carrying our shopping bag, so ...
【单选题】最近，中国科大的科学家们将C 60 分子组装在一单层分子膜表面，在零下268℃时冻结分子的热振荡，并利用扫描隧道显微镜首次“拍摄”到能清楚分辨碳原子间单、双键的分子图像。下列化合物分子中一定既含单键又含双键的是 [ ]
A.
CO 2
B.
C 2 H 4 O
C.
COCl 2
D.
H 2 O 2
【单选题】I will be away for at least one year and I’d appreciate ______ from you now and then.
A.
having heard
B.
hearing
C.
heard
D.
hear
【单选题】网络的出现使人们更加敢于大胆地表露自己的想法，因为“在网络上，没有人知道你是一条狗”。从而网络传播也促进了快餐文化的盛行，受众不再静下心研究作品，而只追求视觉上的刺激，他们平时在网络上看到的信息今天一个样，明天又是另外一个样，长此以往，受众就会产生浮躁心理，对网络中的信息产生不信任。 最符合这段文字中心思想的是( )。
A.
网络文化是快餐文化的典型表现形态之一
B.
主体隐蔽性致使网络文化及其传播产生负面效应
C.
从长远来看，网络文化应该是一种泡沫文化
D.
网络对传统文化带来的害处是不言而喻的
【单选题】Now that she is sick with cold, I feel I ____ have stopped her from going out in the rain.
A.
could
B.
might
C.
must
D.
ought to
【简答题】On a cold November afternoon, my mother and I were walking back home from a pizza store. We had bought many things. I was feeling a little as I was carrying our shopping bag, so I decided to throw som...
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