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【单选题】
设【图片】则下列命题正确的是A.
若 条件收敛，则 收敛
B.
若 绝对收敛，则 收敛
C.
若 条件收敛，则 敛散性不一定
D.
若 绝对收敛，则 敛散性不一定
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举一反三
【单选题】What do we know about the streakers on the planet's slopes?
A.
They are produced by water
B.
They cause chemical reactions
C.
The contain fresh drinking water
D.
They contaminate the planet's surface
【简答题】What kind of planet might NOT support life? A) Most of the planets of the stars. B) Stars similar to our sun. C) Planets similar to the earth. D) Planets with proper conditions.
【单选题】What do we know about the streaks on the planet's slopes?
A.
They are produced by water.
B.
They cause chemical reactions.
C.
They contain fresh drinking water.
D.
They contaminate the planet’s surface.
【简答题】ABS技术有哪三大优点?
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