【单选题】下列反应不属于四种基本反应类型,但属于氧化还原反应的是
A.
2F 2 +2H 2 O==4HF+O 2 ↑
C.
2AgNO 3 +Na 2 CO 3 ==2NaNO 3 +Ag 2 CO 3 ↓
【单选题】化合反应、分解反应、置换反应和复分解反应 是四种基本化学反应类型。下列变化属于氧化还原反应,但是不属于四种基本反应类型的是 [ ]
B.
2Al + Fe 2 O 3 Al 2 O 3 + 2Fe
D.
Cl 2 + 2FeCl 2 ==2FeCl 3
【单选题】与邓肯生命里所有的重大事件紧密相关的地方是?
【单选题】下列反应中属于氧化还原反应,但反应类型不属于四个基本反应类型的是:
A.
Fe2O3+3H2SO4====Fe2(SO4)3+3H2O
【单选题】China's employment and re-employment situation remains tough with a surge this year in the number of graduates hitting the job market and in unemployment in general, a senior official said. The countr...
A.
Tough Year for Job Seekers.
B.
College' Graduates Challenged by Employment.
C.
Too Many Workers Laid Off This Year.
D.
Minister Hopeful of Employment Prospective.
【判断题】心理治疗的对象是针对有心理障碍的人士并给予其治疗使其恢复健康的过程。