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【简答题】
把下列正弦量的时间函数用相量表示: (1) u = 10 sin314 t V (2) i =- 5sin(314 t - 60o) A
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反馈参考答案：
举一反三
【简答题】内环境(internal environment)1．内环境(internal environment)
【简答题】Salt is a common food preservative.
【简答题】Why the salt curing is common for raw hides or skins?
【简答题】Conversation 3 What’s the probablerelationship between the two speakers?A. Father and daughter. B. Brother and sister. C. Teacher and student. D. Customer and shopkeeper.
【简答题】1 Answer the questions. ►
What’s another verb for get a train ? take a train 1 What’s the opposite of a fast
train ? ________________ 2 What’s the opposite of get on
the train ? __________...
【单选题】The ___ name for common salt is sodium chloride.
A.
science
B.
scientific
C.
scientist
D.
scientic
【简答题】What’s the characteristic of the English sentence based on the left-to-right pattern?
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