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【判断题】
视在功率等于无功功率与有功功率之和。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】What does the fourth paragraph mainly talk about?
A.
It continues to analyze the problems.
B.
It confirms the seriousness of the problem.
C.
It introduces the background of American universities.
D.
It shows challenges universities are confronted with.
【简答题】一切组织和个人都必须遵守宪法和法律,任何公民享有宪法和法律规定的(),同时必须履行宪法和法律规定的()。A. 权利 B. 义务 C. 特权 D. 红利
【单选题】Freud became famous mainly because ______.
A.
he was brave
B.
he was a thinker
C.
he had a sense of humor
D.
he was a doctor of Vienna
【单选题】The passage is mainly written to______.
A.
discuss how people view a new invention
B.
analyze how a new invention changes our lives
C.
show the necessity for a new invention
D.
introduce a new invention to the public
【单选题】设α，β，γ，δ是n维向量，已知α，β卢线性无关，γ可以由α，β线性表示，δ不能由α，β线性表示，则以下选项中正确的是( )。
A.
α，β，γ，δ线性无关
B.
α，β，γ线性无关
C.
α，β，δ线性相关
D.
α，β，δ线性无关
【单选题】Freud mainly analyzes through _____ and talks about human mind.
A.
scientific pattern
B.
dynamic structure
C.
inner emotion
D.
outer emotion
【单选题】Freud mainly analyzes through _____ and talks about human mind.
A.
scientific pattern
B.
dynamic structure
C.
inner emotion
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