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【判断题】
幸福就是对欲望的满足。()
A.
正确
B.
错误
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举一反三
【简答题】The three types of energies that make up the specific energy, e. include ______, and ______
【简答题】Agency is classified into three types: ordinary agency, general agency and ______.
【多选题】Basically, there are three types of computers, they are ___.
A.
mainframe. computer
B.
minicomputer
C.
microcomputer
D.
macrocomputer
【判断题】弹钢琴艺术,关于弹钢琴艺术,周恩来曾经做过通俗的解释,弹钢琴要十个指头都动作,不能有的动,有的不动。
A.
正确
B.
错误
【简答题】答案aa、bb、cc、dd
【简答题】已知共线点(AA′,BC)=(BB′,CA)=(CC′,AB)=-1,求证:(AA′,B′C′)=(BB′,C,A′)=-1.
【简答题】如图,△ABC为正三角形,AA'∥BB'∥CC',CC'⊥平面ABC且3AA'= BB'=CC'=AB,则多面体ABC-A'B'C'的正视图是(  )
【单选题】There are three types of volcanoes active volcanoes, dormant volcanoes and ______ volcanoes.
A.
extinguished
B.
extinct
C.
distinct
D.
instinctive
【简答题】如图,直线AA 1 ∥ BB 1 ∥ CC 1 ,如果 AB BC = 1 2 ,AA 1 =2,CC 1 =5,那么线段BB 1 的长是______.
【简答题】如图,A,B,C为不在同一条直线上的三点,AA′ ∥ BB′ ∥ CC′,且AA′=BB′=CC′,求证:平面ABC ∥ 平面A′B′C′.
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