电棒的型号有4号、6号、8号、10号,其形状有圆形和()两种。
A.三角形
B.螺旋形
C.方形
D.多角形
参考答案:D
根据中华人民共和国义务教育法实施细则的规定,承担实施义务教育任务的机构有那些?
You are discussing the following picture with your English friend Jim. Now you are telling him how you understand the picture and what makes you think so.
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