用所给词的适当形式填空。 1. Look! Whose ______ (Walk
题型：填空题
问题：
用所给词的适当形式填空。
1. Look! Whose ______ (Walkman) are these? Perhaps they are the twin's.
2. Is there an ______ (electric) shop in your town?
3. Amy wants to buy some presents for ______ (they).
4. Do you understand the ______ (mean) of the new world?
5. Do you like to have cold ______ (drink)?
是一种医药中间体,常用来制备抗凝血药,可通过下列路线合成:
E的化学方程式: 。