It can be concluded that science education has re

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It can be concluded that science education has reached a new 【phase 】of development.

A. grade

B. class

C. standard

D. stage

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  • 答案:D

    句意:可以概括地说,科学教育已经发展到了一个新阶段。phase意为“阶段,时期”。grade意为“等级”; class意为“阶级”; standard意为“标准”; stage意为“时期,阶段,程度”。