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【单选题】
在以下的数字调制,不能采用包络检波进行解调的是A.
MASK
B.
MFSK
C.
MPSK
D.
QAM
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举一反三
【单选题】Passage 1 Listen to a short passage and choose the best answer to each question you hear
A.
He will soon graduate from school
B.
He watches TV in the evenings lately
C.
He usually goes shopping on weekend
D.
He spends eight hours at school on weekdays.
【简答题】Passage 1 Listen to the passage and choose the best answer.
【单选题】Passage 1 Listen to a short passage and choose the best answer to each question you hear.
A.
She worked as an interpreter in a company.
B.
She volunteered to work in a Spanish church.
C.
She acted as a tourist guide on a trip to Mexico.
D.
She taught Spanish speakers how to speak English.
【单选题】Passage 1 Listen to a short passage and choose the best answer to each question you hear.
A.
It aroused in her a strong interest in Spanish culture.
B.
It excluded the use of other languages in the classroom.
C.
It proved to be an unbalanced way to learn the language.
D.
It explored the cultural and language elements in great depth.
【单选题】Passage 1 Listen to a short passage and choose the best answer to each question you hear.
A.
She worked ahead of schedule and skipped a level.
B.
She enjoyed the traditional method of learning Spanish.
C.
She felt discouraged while studying in the top-level class.
D.
She showed dissatisfaction with the slow pace of her class.
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