已知$A,B$是双曲线$\frac{x^2}{4}-y^2=1$的两个顶点，点$P$是双曲线上异于$A,B$的一点，连接$PO$（$O$为坐标原点）交椭圆$\frac{x^2}{4}-y^2=1$于点$Q$，如果设直线$PA,PB,QA$的斜率分别为$k_1,k_2,k_3$，且$k_1+k_2=-\frac{15}{8}$，假设$k_3>0$，则$k_3$的值为（  ）

实验室模拟合成氨和氨催化氧化的流程如下，气体混合的装置如图甲所示，合成氨的装置如图乙所示，氨吸收和氨氧化的装置如图丙所示．

（1）已知实验室可用饱和亚硝酸钠（NaNO₂）溶液与饱和氯化铵溶液经加热后反应制取氮气．则制取氮气的装置为____ （从图A、B、C中选择，下同），制取氢气的装置为____ ．

（2）甲装置的作用除了使气体充分混合外，还有①____ 、②____ ．

（3）乙装置发生反应的化学方程式为____ ．其中催化剂为Fe粉，它能否用Fe₂O₃代替？____ ．说明理由____ ．

（4）丙装置吸收一段时间氨气后，再通入空气，同时将经加热的铂丝插入到锥形瓶内，可观察到：有红棕色气体和白烟生成，请用化学方程式说明催化氧化后，产生以上现象的原因：____ ；____ ，____ 　．

（2015•淮北）某人因溺水而导致呼吸和心跳都停止，应立即用人工呼吸的方法进行急救．　　　　　　（判断对错）

(After work, Jim, Peter and Pam are talking about movies.)

Jim: What are you doing now?

Peter: Not much. ____

Jim: I want to watch a movie.

Peter: What movie do you want to see?

Jim: I would like to see an action movie.

Peter: The new X-Men movie is on. ____

Jim: I want to see that, too. But what about Pam?

Pam: ____Then we can watch it together.

Jim: But which one can we watch？

Pam: Can we watch a funny movie? How about Night at the Museum?

Jim: Night at the Museum? ____ I saw that last year.

Pam: No. This is Night at the Museum 2. It's another move with the same characters.

Jim: OK. That might be fun!

Peter: ____

Pam: There is a famous museum, the Smithsonian in Washington, D.C. The things in it come alive (活过来)!

Peter: OK! Now .I am interested!

Jim: Yeah! Me too. Let's go together!