波长越大,其频率越 ____,波数越 ____,能量越 ____。 原子发射、 原子吸收 和 原子荧光 三种光分析方法是利用线光谱进行
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原子内层电子跃迁的能量相当于 光，原子外层电子跃迁的能量相当于 光和 光。
In this movie, George VI is portrayed by ___
A. Geoffrey Rush
B. Colin Firth
C. Helena Bonham Carter
D. Guy Pearce
The movie is called as "buddy movie" because _____.
A. it is a movie tackles some serious subject matter
B. it reflects the historical events
C. it ends up with a triumph of courage and friendship
D. it was nominated for 12 Academy Awards
Which of the following statements is not true? _____
A. Britain is a parliamentary democracy with a constitutional monarchy
B. The House of Commons is not the center of Parliament power
C. The Prime Minister is the most powerful leader in Britain
D. 10th Downing Street is the official residengce of the British Prime Minister
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