早上起床，小冬面对太阳做早操，小冬面向______方．
早上起床，小冬面向太阳做早操，也就是面向东方．
故答案为：东．
I realized the purpose of the whole experience: I needed to learn to open my heart and give love without requiring anything _____.
A．by design
B．for once
C．in return
D．as a consequence
含有较多铁素体相的奥氏体不锈钢焊接时，（）时脆化速度最快。
A.350℃
B.500℃
C.450℃
D.475℃
