在我国宋朝,科学家沈括认为地球是一个圆球,“天体圆如弹丸,地如鸡中黄……天之包地犹如壳之裹黄”,提出了“浑天说”。 ( )
参考答案:错
解析: 浑天说是由汉代的张衡提出来的。
The children started planning how to spend the holiday, their lessons _____ for the term. [ ]
A. finishing
B. finished
C. had finished
D. were finishing
脓血便、脓多血少、呈脓血花便者多为()
A.瘀点
B.充血性皮疹
C.瘀斑
D.血肿
E.小红痣