侯建新在《社会转型时期的西欧和中国》中指出:“他们(徽商)一方面耗费巨额利润来促使自己缙绅化,另一方面又将大量财富抛向非生产领域,诸如购置族田、建祠、修家谱,以及提倡程朱理学等……这样的商品经济,实质上只能补充和强化自然经济。”该材料意在反映明清时期( )
A:商人政治地位空前提高
B:重农抑商政策发生逆转
C:社会转型根本动力缺乏
D:封建伦理道德得到强化
小华所在的九年级(1)班共有50名学生,一次体检测量了全班学生的身高,由此求得该班学生的平均身高是1.65米,而小华的身高是1.68米,下列说法错误的是( )
阅读理解 Tom and his father, Mr. Smith, always go out for a walk after supper every day. After that, he does his homework and watches TV for half an hour. Then he goes to bed. Now Tom and his father are taking a walk along the road. It begins to rain. Tom wants to run for home. But his father says very slowly, “Don't run. Isn't it raining in front of you?”
下列有关溶液的说法中,正确的是 ()