手机内部保养可采用石蜡油润滑保养。
参考答案：错
已知一个圆锥的母线长为2cm，它的侧面展开图恰好是一个半圆，则这个圆锥的侧面积等于______cm2（用含π的式子表示）．
— About the economical crisis that he decided to look for more information about it.
— _____.[ ]
A. So curious he was
B. So curious was he
C. Such curious he was
D. Such curious was he
