The assignment and grading of open test questions in maths has been a heated topic that arouses a lot of attention and a hard nut to crack in the current curriculum research and evaluation.
初中数学开放性试题的设计和评价是当前新课程研究中的热点和难点。
And he took the stones, but nimbly put a nut into his mouth instead, and crack! He bit open the shell.
他拿起石头，但机敏的用核桃换掉石头放进嘴巴，然后咬开他！
And he took the stones, but nimbly put a nut into his mouth instead, and crack! He bit open the shell.
他拿起石头，但机敏的用核桃换掉石头放进嘴巴，然后咬开他！
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