后天性行为大大提高了动物适应复杂环境的能力，因此动物的先天性行为可有可无。 (判断对错)

读“地理区域图”，下列有关叙述与图示实际情况相符的是（  ）

① E国有“无流国”之称       ② 该地区是佛教、基督教和伊斯兰教的发源地

③ D国的安卡拉羊和C国的椰枣著名   ④ B国的热带沙漠气候深受地形影响

动物跳跃时将腿部弯曲然后伸直加速跳起．下表是袋鼠与跳蚤跳跃时的竖直高度．若不计空气阻力，则袋鼠跃起离地的瞬时速率约是跳蚤的多少倍（   ）

	跳跃的竖直高度/m
袋鼠	2.5
跳蚤	0.1

下列化学与社会的关系中，处理或应用正确的是（   ）

根据短文理解，完成各题任务。
C
    Sally is an English girl. She is my English teacher, Mrs. Brown's daughter. She is only five years old. (A)She can't go to school. She likes playing ping-pong.
    Her favorite ping-pong player is Zhang Yining. Sally is in the ping-pong club. She goes to the ping-pong club every day. She plays ping-pong for two hours there.
    Sally has a sister. Her name is Maria. She is in our class. She likes running. She runs with her mother every morning. (B)她最喜欢的赛跑明星是刘翔. Maria says she wants to be a running star like Liu Xiang.