吴茱萸粉末加盐酸振摇,过滤,滤液加碘化汞钾,溶液显()
A.生成红色沉淀
B.生成黄白色沉淀
C.形成黄色絮状物
D.黄色
E.红色
参考答案:B
根据短文,判断正(√)误(×)。
Many years ago,there was an old man in New York. He didn't like children at all. But he liked cats
very much. He had black cats and white cats. He had mother cats and baby cats. So children often came
to his house. They came to play with cats. More and more cats came to the old man's house. The old man couldn't give the cats much food. So he gave each child a cat. The children were very happy. The old man was very happy, too.
( ) 1. The old man came from America.
( ) 2. The old man liked children very much.
( ) 3. The old man had many cats.
( ) 4. The old man didn't have much food for the cats.
( ) 5. Each child had got a cat at last.
桂枝附予汤证、白术附子汤证、甘草附子汤证有何异同