A:﹣ 316
B:316
C:﹣ 116
D:116
During ancient times, children didn't have much to enjoy themselves. However, they came up with interesting games to play in their childhood.
Kicking stone balls
During the Qing Dynasty, kicking a stone ball around was a popular game in the northern part of China, and it was often played in winter to keep warm.
Playing hide-and-seek
Hide-and-seek is a traditional game for children, popular around the nation. There are two ways to play: covering a child's eyes while other kids run around to tease(戏弄) him or, more commonly, others hide and one child must try to find them.
Flying kites
Kites have quite a long history. The earliest kites were made of wood, instead of paper. The three most famous kites are the Beijing kite, Tianjin kite and Weifang kite. Each has its own feature. For example, the bird-shaped kite with long wings is a special kind of the Beijing kite.
Watching shadow plays(皮影戏)
The closest thing to watching a film during ancient times was going to see a shadow play. The artists control puppets(木偶) behind the screen and tell stories to the music.
图中,图甲为突触的亚显微结构示意图,图甲为脊髓反射模式图,请回答:
(1)反射弧通常由____ 个部分组成,包括____ 、____ 、____ 、____ 、____ .
(2)突触由突触前膜、____ 、和图甲的B____ 三部分组成.
(3)当神经纤维某处受刺激产生兴奋时,膜内外电位表现为____ ,与邻近未兴奋部位形成了局部电流,使兴奋依次向前传导.
(4)若刺激图乙中的Ⅰ处,兴奋在②的传导特点是____ (单向传导/双向传导).
阅读下面的材料,根据要求写一篇不少于800字的文章。
电影《喜马拉雅》中,一位喇嘛对他的弟子说:“当你眼前有两条路时,要选择困难的那一条。”而一位经济学家则说:“世界上的一切行为,都可以用经济学来解释。譬如,我们每天出门回家,几乎都走同一条路,那就是因为,人们都在避免因为另一条路的陌生所带来的风险,以及要去探索一条新路径所要付出的时间与精神成本。”
困难的路有风险也有风景,熟悉的路虽经济但平淡。
请根据材料,从自己对“路”的感受出发,阐述你的看法和理由。
要求选好角度,确定立意,明确文体,自拟标题,不要套作,不得抄袭,不得泄露个人信息。
“鱼戏莲叶间”是描写小鱼在莲间自由游泳时的情景.为小鱼游泳提供主要动力的是( )