如图所示，电路中R_c为压敏电阻，阻值随所受压力增大而减小，开关S闭合后，螺线管的上端相当于电磁铁的____ 极，当压力增大时，电磁线的磁性会____ ．

右图是“十二五”时期我国万元国内生产总国内生产总值能耗降低率变化图。由此可见(    ) 

①节能减排措施成效明显   

②能源消费总量不断减少   

③粗放的发展方式正在转变   

④经济发展保持中高速增长  

由等体积、等pH的Ba(OH)₂、NaOH、NH₃·H₂O三种碱溶液，滴加等浓度的盐酸将它们恰好中和，用去酸的体积分别为V₁、V₂、V₃，则三者的大小关系正确的是(　　)

根据中文提示写出单词或词组，使句意完整、正确。
1.—Could you please do me a favor? —Sorry. I am ____ (忙的) now.
2.—They are ____ (英雄) in my eyes.  —I agree with you. We should learn something from them.
3.—Too much ____(噪音) can make you deaf.  — I think so.
4.— Long time no see!  — Yeah, I have____  (参观) Japan for three months.
5.— How time flies! It’s June now.   — Yeah, we should try our best to make our dream____ (实现).