问题
单项选择题
长期受热高于200℃，受急冷急热交替作用或有酸性侵蚀的部位，不得使用（）。
A.煤矸石砖
B.粘土砖
C.页岩砖
D.粉煤灰砖
答案
参考答案：D
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长期受热高于200℃，受急冷急热交替作用或有酸性侵蚀的部位，不得使用（）。
A.煤矸石砖
B.粘土砖
C.页岩砖
D.粉煤灰砖
参考答案：D
One day Jack went to a big dinner party. His coat was not good. When he went in, no one looked at him and no one gave him food. He was angry that he went home, and his best coat and then came back to party. Everyone stood up at once and came to meet him. Other guests him to the best table and gave him the best food. Then Jack put the food in his coat and said, “Please eat, my dear coat. ”The other people were very and said, “Why are you doing that?” Jack answered, “I’m asking my coat now. When I came here at , nobody noticed me gave me food. After I changed my coat, you gave me the best food. So you gave food to my coat, not to .”Everyone felt embarrassed(尴尬的).
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