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【简答题】
联合国大会1948年通过的全面保护个人基本权利的文件是()。 A·《经济、社会和文化权利国际公约》 B.《世界人权宣言》 C.禁止和惩治灭绝种族罪公约 D.禁止和惩治种族隔离罪公约
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【单选题】电路如图所示,已知 R 1 = 5k Ω , R 2 = 15k Ω , R 3 = 10k Ω , R C = 2k Ω , R E = 2k Ω , 当电阻 R 2 不慎被短路后 ,( 如图 ), 该电路中的晶体管处于〔〕。
A.
截止状态
B.
放大状态
C.
饱和状态
【简答题】已知电路如图所示，R 1 =10kΩ，X L1 =X L2 =10kΩ，X M =2kΩ，试求负载Z L 获得最大功率条件。
【单选题】电路如图所示,已知 R 1 = 5k Ω , R 2 = 15k Ω , R 3 = 10k Ω , R C = 2k Ω , R E = 2k Ω , 当电阻 R 2 不慎被短路后 ( 如图 ) , 该电路中的晶体管处于( ) 。
A.
截止状态
B.
放大状态
C.
饱和状态
D.
开关状态
【简答题】f(n)为n 的各位数字之和，如14 +1=197，1+9+7=17，则f(14)='17.' 记f (n)=f(n),f 则f _________
【单选题】Newcomers When a country is under-populated, newcomers are not competitors, hut assistants. If more come they may produce not only new quotas, but a surplus as well. In such a state of things land is ...
A.
scarce
B.
sacred
C.
abundant
D.
extractive
【简答题】The newcomers found it impossible to ______ themselves to the climate sufficiently to make permanent homes in the new country. A) suit B) adapt C) regulate D) coordinate
【单选题】What is the attitude of the newcomers from different cultures towards finishing the work fast?
A.
Unimportant.
B.
Respectful.
C.
Successful.
D.
Serious.
【简答题】已知f（x）是指数函数，且f（1+ 3 ）?f（1- 3 ）=9，则f（2+ 17 ）?f（2- 17 ）的值为______．
【单选题】In the sentence 'these newcomers will be at their own expense' (Line 2, Paragraph 3), 'their' probably refers to ______.
A.
these newcomers
B.
rich countries in 'first-world'
C.
many bosses, workers and politicians
D.
bosses, workers and politicians in the rich world
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