炉贝来源于（）。
A.暗紫贝母
B.甘肃贝母
C.梭砂贝母
D.新疆贝母
E.一轮贝母
参考答案：C
近似数1.20与1.2的大小相等，精确度相同．______．
This is one of the best films _______.
A．that have been shown this year
B．which have shown
C．that has been shown this year
D．which you talked
