今年7月份以来，受国内外多种因素影响，以农产品为主的居民生活必需品价格上涨较快，社会各界广泛关注，也引发了部分居民对通货膨胀的担忧。这种担心可以理解，但是我们也可以有把握地说，目前我国完全有能力有条件保持价格总水平的基本稳定。

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    Mr. Jones teaches history. He is a very good teacher. During this year, most of his students got at least a C on the tests and there were many A's. On the last test, however, Mr. Jones got a big surprise. He wrote down all of his students' scores. Then he counted the number of students that got between 91 and 100. There were only two! Only two students got A's! He found out that there were only a few B's and C's. Most of the students in his class got a D or and F on the final test. Mr. Jones looked at the test again. He thought that it was too hard. He decided to give every student 10 more points. Then many of the students got good grades on the test. What a nice teacher!