问题
填空题
用所给词的正确形式填空。
1. Everybody is worrying about her _____( healthy) .
2. Their _____ (body) are badly hurt.
3. Look! The old man _____ (move)his body.
4. Tomorrow we're free and we'll go _____ (ski).
5. One of his _____ (foot) is very big.
答案
l. health 2. bodies 3. is moving 4. skiing 5. feet
2PbSO4+2H2O，有关该电池的说法正确的是 [ ]
，覆盖6mm，上颌前牙段拥挤4mm，下颌前牙段拥挤6mm，ANB 5.5度