如图所示木块的长度是　 ____cm．

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      船头坐三人，中峨冠而多髯者为东坡，佛印居右，鲁直居左。苏、黄共阅一手卷。东坡右手执卷端，左手抚鲁直背。鲁直左手执卷末，右手指卷，如有所语。东坡现右足，鲁直现左足，各微侧，其两膝相比者，各隐卷底衣褶中。佛印绝类弥勒，袒胸露乳，矫首昂视，神情与苏、黄不属。卧右膝，诎右臂支船，而竖其左膝，左臂挂念珠倚之，珠可历历数也。
     舟尾横卧一楫。楫左右舟子各一人。居右者椎髻仰面，左手倚一衡木，右手攀右趾，若啸呼状。居左者右手执蒲葵扇，左手抚炉，炉上有壶，其人视端容寂，若听茶声然。

右图为某哺乳动物的一个细胞示意图，它属于下列何种细胞（ ）

    China is a country with a rich culture in calligraphy(书法).1computers are everywhere in our life, Chinese people should not2the skill of writing with hands.

    Now the computer can help people to write. People are3computers more often than before. So many people are forgetting how to4Chinese characters(汉字). People often make a lot of mistakes in handwriting.

    Today, China is trying to help students and teachers to5their handwriting. We6that teachers can write well_7the blackboard and students can write well on their exercise books, too. Teachers should make their teaching plans and students should_8their homework by writing with their9. We are sure our handwriting can become10and better in this way.