问题
判断题
体积凝固凝固区域宽，枝晶发达，补缩通道长，阻力大，枝晶间补缩困难。易产生缩松，热裂倾向大
答案
参考答案：对
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体积凝固凝固区域宽，枝晶发达，补缩通道长，阻力大，枝晶间补缩困难。易产生缩松，热裂倾向大
参考答案：对
| 阅读理解。 | ||||
| A generation gap (代沟) has become a serious problem! I read a report about it in the newspaper. Some children have killed 1 after quarrelling (爭吵) with 2 . I think this is because they don't often have a talk with each other. Parents now 3 more time in the office, 4 they don't have much time to stay with their children. As time passes, they both feel that they don't have the 5 topic (话题) to talk about. I want to tell parents to be more patient with your 6 , get to know them and 7 them. And for children, show your 8 to your parents. They are the people who love you. So 9 them your thoughts. In this way, you 10 have a better understanding of each other. | ||||
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