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【单选题】
音节是语音最小的( )。
A.
听觉单位
B.
自然单位
C.
语言单位
D.
记音单位
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【判断题】彩色电视中解码器的作用是将彩色全电视信号转化为三基色电信号。
A.
正确
B.
错误
【单选题】Since the auto is the main source of travel in America and distances between major cities are far, a common way of getting around the country is by hitchhiking. Although it is not illegal, law enforce...
A.
It is a good way for children.
B.
It is illegal in America.
C.
It may involve dangers.
D.
It must be totally stopped,
【判断题】小野さんは立派の家がほしいです。
A.
正确
B.
错误
【单选题】Tests Show Women Suited for Space Travel Between 1977 and 1981, three groups of American women, numbering 27 in all, between the age of 35 and 65, were given month-long tests for space travel purposes...
A.
At the end of ten years, they had to spend a further twenty days absolutely confined to bed.
B.
They were volunteers and were paid barely above the minimum wage.
C.
These tests were conducted to determine how they would respond to conditions resembling those abroad the space shuttle.
D.
They need less food and less oxygen and they stand up to radiation better.
E.
Some of them were over 65.
F.
When they were finally allowed up, the more physical active women were specially subject to pains due to a slight calcium (钙)loss.
【判断题】解码器的作用是将彩色全电视信号还原成红、绿、蓝三种基色信号ER、EG、EB及伴音信号。
A.
正确
B.
错误
【单选题】What's the controlling idea in the sentence? 5. There are several enjoyable ways to travel between the US and Queretaro.
A.
several enjoyable ways
B.
to travel between the US and Queretaro
【单选题】What's the controlling idea in the sentence? 6. There are several enjoyable ways to travel between the US and Queretaro.
A.
several enjoyable ways
B.
to travel between the US and Queretaro
【单选题】What is the relationship between meteors and meteorites?
A.
When meteors travel through space and arrive in the earth, all of them become meteorites.
B.
When meteors travel through space and land on the earth, swarms of meteor particles are called meteorites.
C.
When meteors travel through space and arrive in Earth, only very large meteors become meteorites.
D.
When meteors travel through space and land on the earth, thousands of meteors become meteorites.
【判断题】彩色电视中解码器的作用是彩色全电视信号转化为三基色电信号。
A.
正确
B.
错误
【简答题】In some countries young people are encouraged to work or travel for a year between finishing high school and starting university studies. What are the advantages and disadvantages of doing this? Write...
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