青春期最难应对的问题是()
A．社会适应
B．情绪情感
C．性困扰
D．自我意识矛盾
E．以上都是
参考答案：E
_________ the temperature might drop, coal was prepared for warming.
A．To consider
B．Considered
C．Considering
D．To be considered
4#余热炉软水站遭遇突然一趟电源停电，怎样应对？
