问题
单项选择题 共用题干题
复合树脂中填料的主要作用是赋予材料良好的物理机械性能，对压缩强度、硬度和耐磨性有显著提高
填料加入量影响其强度表现为（）
A.加入量多强度高
B.加入量多强度低
C.加入量少强度高
D.粒度分布窄强度高
E.粒度分布宽强度低
答案
参考答案：A
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复合树脂中填料的主要作用是赋予材料良好的物理机械性能，对压缩强度、硬度和耐磨性有显著提高
填料加入量影响其强度表现为（）
A.加入量多强度高
B.加入量多强度低
C.加入量少强度高
D.粒度分布窄强度高
E.粒度分布宽强度低
参考答案：A
One day a mother mouse and her babies were out. They were enjoying 小题1: games. Suddenly a hungry cat came up to them! The cat hid（藏） 小题2: a big tree. She could hear the mice talk. After the mother mouse and her babies knew what had happened, the cat jumped from her hiding-place and started 小题3: run after them. The mother mouse and her babies began to run away. They hurried towards their 小题4: But the baby mice were 小题5: frightened that they could not run very 小题6: . The cat came 小题7: . What was to be done? The mother mouse stopped running, turned round and faced the cat, shouting “Bow! Wow! Bowwow!” just like an angry dog. The cat was so 小题8: that she ran away. The mother mouse turned to her babies, “Now you see how important it is to learn a 小题9: language!” Just then she heard a shout "Miao! Miao!" just like the cat. “Oh, the cat's coming back. We must run right now.” The mother mouse called out to her children. “Haha! It's only a 小题10: ”said one of her children. “I have learned a foreign language.” |