请列出“算经十书”所包括的古算书书名
参考答案:
《周髀算经》《九章算术》《海岛算经》《孙子算经》《张邱建算经》《五曹算经》《五经算术》《夏侯阳算经》《缀术》和《缉古算经》
计算:tan45°-2cos30°+sin60°
We have realized ________ she is expecting is just an opportunity to test her ability.
A.that
B.which
C.what
D.where