问题
单项选择题
天平是根据（）原理制造的一种仪器。
A.质量守恒
B.杠杆
C.化学平衡
D.勒沙特列
答案
参考答案：B
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天平是根据（）原理制造的一种仪器。
A.质量守恒
B.杠杆
C.化学平衡
D.勒沙特列
参考答案：B
Friends play an important role in our life. Most people hope that their friends will always be there. They _____ friendship to last forever. ____, even the best friendship can end. As time goes by, many friendships end because of a(n) ______ in personality or way of life. The friendship slowly loses importance and finally_______. Tommy wrote, “I didn’t even know the friendship was over until I caught myself thinking of Alan as a former friend.” Peter explained. “We _____ seeing each other less and less. The friendship was just over.” Sometimes friendships______ suddenly from a disagreement or move to another place. Alice said, “The end of our friendship was a gradual thing. I moved from one side of the city to the other. Since then we _____ made a phone call. We met less and less. At last our friendship ended.” Jack said, “ When I moved to Seattle after college, our friendship died. Both of us were always____ with new jobs, so we didn’t keep _____ touch with each other. Our friendship was so dead that I didn’t call him_____ I went home.” Yet the biggest problem to a friendship is change. Lillian Rubin in her book Just Friends say, “Generally it’s______ that friends will accept each other if they both remain what they were when they met, or change in similar directions. If they change or grow in different ways, the friendship most likely______ lost.” No matter why, when, or how friendships end, there is always_____ pain of loss. When nothing can be____ to keep the friendship, it is important to forget the pain. Then move on_____ new friendships. May new friendships bring you pleasure and happiness!
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