The summer holiday is coming. I am going to do my homework every day. I am going to play ping­pong and basketball with my friends. I am going to go to the park with my friends, surf the Internet(上网), read books and watch TV every evening. I am going to visit my grandparents and help them with the housework. I am going to help my parents clean the room and cook dinner. I love summer holidays!

I am going to____ 

⑴do my homework

⑵watch a film

⑶visit my uncle

⑷go to the park

⑸do the housework

⑹go shopping

⑺clean the room

⑻cook dinner

某家系中有甲、乙两种单基因遗传病（如下图），其中一种是伴性遗传病。相关分析不正确的是（ ）

下列对犯罪认识正确的是（    ）

①犯罪侵害了他人，给他人及其家庭带来无尽的伤痛      ②犯罪对自己没伤害

③犯罪会断送自己的前程                                                      ④未成年人自身不知法、不懂法，法律意识淡漠是犯罪的一个重要原因

如图，从一个建筑物的A处测得对面楼BC的顶部B的仰角为32°，底部C的俯角为45°，观测点与楼的水平距离AD为31m，楼BC的高度大约为多少？（结果取整数）．（参考数据：sin32°≈0.5，cos32°≈0.8，tan32°≈0.6）