题目

In our country every boy and every girl ______ the right to education. A. has           B. have            C. is                  D. are   答案:A下列各组比较中,正确的是(  ) A、稳定性:HF>HClB、酸性:HNO3<H3PO4C、还原性:HF>HClD、活泼性:F2<Cl2
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