既能涩肠止泻、止血,外用又能收涩生肌的药物是()
A.赤石脂
B.禹余粮
C.罂粟壳
D.莲子
E.肉豆蔻
参考答案:A
The more civilized man has become,______he is limited by the disadvantage of his environment.
A.and the more
B.the less
C.the lest
D.and the less
下列选项表述正确的是()
A.北宋时,雕版印刷和活字印刷术的发明在我国产生
B.北宋的海船上安装了指南针,当时叫做“司南”
C.郭守敬著有《梦溪笔谈》
D.火药最早用于军事是唐朝末年