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【简答题】
I Choose the correct form of the words to complete the following sentences. 1. advertise, advertisement, advertising a. Nowadays, Internet _________ is a rapidly developing industry in China. b. Many fashions are _________ on the website. 2. perform, performance, performing a. Some software programs have a very powerful ____________ . b. Everyone should _______ his/her duty to help the company. 3. commerce, commercialize, commercial a. They have offices in the ___________ heart of the city. b. Steven planned to carry on a small amount of _________ with his friends. 4. independently, independent, independence a. Most governments realize that national economies aren’t ___________ of each other. b. College students can make their choices ____________ in many things. 5. efficient, efficiency, efficiently a. We should focus on _________ in learning English. b. Jacky is an _______ scholar who published several important papers last year
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【简答题】变比n=10的变压器,原绕组接上E=10V的直流电源,副绕组两端电压为______________,原绕组接上E=10V的交流电源,副绕组两端电压为______________V,如果负载电阻RL=2Ω,那么原边的等效电阻为______________Ω。
【简答题】变比n=10的变压器,原绕组接上E=10V的直流电源,副绕组两端电压为______
【单选题】Which of the following statement is not correct?
A.
When pitch, stress and sound length are tied to the sentence rather than the word in isolation, they are collectively known as intonation.
B.
Chinese is an intonation language.
C.
Stress includes changes in pitch, volume, syllable length, and vowel clarity.
D.
The major four tones in English are falling tone, rising tone, fall-rise and rise-fall
【多选题】when ____,_____and ______are tied to the sentence rather than the word in isolation, they are collectively known as intonation.
A.
pitch
B.
stress
C.
sound length
D.
sound rythms
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