社会主义核心价值观是社会主义核心价值体系的高度凝练和实践要求。
参考答案：对
— _____
—Yes, please. I want a watch for my son.[ ]
A. How are you?
B. Excuse me.
C. Can I help you?
润滑油的凝固点和闪点各表示什么意思？
How are you?