思维着的精神之所以是地球上最美的花朵,是因为它 ①如实地反映了客观存在 ②直接反映了客观存在 ③具有目的性和计划性 ④具有主观创造性和自觉选择性 A. ①③ B. ②③ C. ②④ D. ③④ 答案:D-What are those?
-They are battery-operated slippers. They ________ in the dark.
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A.used to seeB.are used for see
C.are used to seeD.used for seeing