人体内功能性铁存在于______和______及含铁酶类。
参考答案：血红蛋白 肌红蛋白
用介词填空。
1. Su Yang saw the film the grass and pick it _____.
2. He was here a quarter to eleven. Now he is the tree.
3. The old lady blue is blind. She can't see her eyes.
4. A storm is coming the Atlantic Ocean.
生石灰带水清塘的适宜用量（）公斤／亩。
A、70-80
B、80-100
C、100-120
D、125-150
