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【判断题】
电子可以吸收一个光子A.
正确
B.
错误
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【单选题】The five most widely spoken Romance Languages by the number of native speakers are Spanish, Portuguese, French, ltalian, and Romanian.
A.
the languages mostly spoken in the Central Asia
B.
the languages mainly used for a romantic affair or experience
C.
the languages that belong to the Italic branch of the Indo. European family
D.
none
【单选题】Spanish, spoken by 12% of the population at home, is the second most common language and the most widely taught second language.
A.
English
B.
Japanese
C.
Spanish
D.
French
【单选题】The official language spoken in Canada is
A.
English and Spanish.
B.
French and Spanish.
C.
English and French.
D.
Spanish and Dutch.
【单选题】Which of the following is true of Spanish?
A.
It is a widely spoken language in the world.
B.
It is going to replace English in the future.
C.
It has developed at the expense of other languages.
D.
It has become a political language.
【单选题】The story happened in a small Spanish hotel that offers good service and___ English is spoken.
A.
who
B.
where
C.
that
D.
there
【简答题】50Hz 的工频信号的8次谐波分量的频率是 。
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