能被消化道直接吸收的物质是( )
①水 ②糖类 ③无机盐 ④脂肪 ⑤维生素 ⑥蛋白质.
A:①③⑤
B:②④⑥
C:①②③
D:④⑤⑥
A: What are you doing?(你们在做什么?)
B: We is playing. ____
A: You's big. ____
B: Now we'are small. ____
A: Are you happy?
B: No, we are. ____
A:Are you celd? ____
B: Yes, we are hot.