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【单选题】
已知两正弦交流电压 u 1 =100sin(314 t - 30 ° )V , u 2 =100sin(314 t +30 ° )V ,二者的相位差取绝对值为 ( ) 。A.
60 °
B.
120 °
C.
180 °
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【单选题】Which of the following sentences best explains “To think I trusted you!”?
A.
I never trusted you.
B.
I think I can trust you.
C.
I thought you trusted me.
D.
I was wrong to have trusted you.
【简答题】饭店人力资源管理
【单选题】In Paragraph 2, the author explains the differences in the treatment of musical elements in order to______.
A.
identify various musical styles of different cultures
B.
explain that each culture has its own distinctive musical style
C.
argue that the most wonderful music in the world is from Western society
D.
describe the processes of differentiating between different musical styles
【简答题】饭店人力资源管理
【单选题】The video explains in simple terms how the new tax works.
A.
a quality that makes sb/sth attractive or interesting
B.
a series of musical notes that are sung or played in a particular order
C.
a word or phrase used as the name of sth
D.
no choice
【简答题】饭店人力资源管理
【简答题】饭店人力资源管理
【简答题】饭店人力资源管理
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