具有涩肠,止血,杀虫功效的药物是:()。
A.椿皮
B.苦楝皮
C.贯众
D.榧子
E.肉豆蔻
参考答案:A
—What fruit is in season now?
—Pears and apples,________.
A.I know
B.I think
C.I see
D.I feel
观察水的透明度有什么意义?