函数的图像可由函数图像至少向右平移 _______ 个单位长度得到。

所谓“四书”是指《孟子》、 《大学》、《中庸》和《 ____》。

阅读下面短文，掌握大意，然后从每题所给的A、B、C、D四个选项中选出最佳选项。

Once, there was a beautiful girl who didn ’t like herself, because she was blind, she couldn ’t see anything. In fact, the girl __11__ nobody except her boyfriend, for he was always __12__ to help her. She used to tell her boyfriend, “ __13__ I could see the world, I would marry you. ” One day, someone donated* a pair of __14__ to the girl. When the bandages* came off ，she was able to see __15__ ,including her boyfriend for the __16__ time. He asked her, “Now that you can see the world, will you __17__ me?” The girl looked at her boyfriend and was greatly surprised to see that he was blind, __18__ . She had never expected that, and she would not like to be with a blind husband for the rest of her li fe, so she __19__ to marry him. Her boyfriend left in tears and a few days later wrote a __20__ to her, saying, “My dear, take good care of your eyes. Before they are yours, they were __21__ .” So, this is how the human brain* often works when our status* changes. Only a very few remember __22__ life was like before. And we often ask for more than we need. Life is a gift. Today, before you complain about the __23__ of your food ，think of those who have nothing to __24__. Before you complain about life ，think of some ones who went to heaven* too early. Before you complain about your old __25__ , think of the people who are living in the streets. And when you are ti red and complain about your job, think of those who have no jobs. In a word, enjoy the things you have and don ’t forget your past.

若a>0,b>0, 且1/a+1/b=根号ab。

阅读理解，根据短文内容判断正(T)误(F)。

It's Sunday morning. The students of Class 3 are giving their classroom a good cleaning.

Miss Huang, their teacher, is working with them. The children are busy. Some are carrying water;

some are cleaning the windows; others are sweeping the floor. Zhang Hua is putting up a map on the

wall. It is a map of China. Wang Fei and Wei Qing are mending some broken chairs. The children are.

listening to the radio while they are working. The classroom looks nice and bright after the cleaning.

The children are very happy. They go home for lunch at noon.

( ) 1. The children are playing in their classroom on Sunday morning.

( ) 2. Miss Huang, their mother, is working with them.

( ) 3. There is a map of China on the wall.

( ) 4. Two of them are repairing the broken chairs.

( ) 5. They are singing while they are working.