用于治疗人破伤风的抗毒素血清对人是
A．抗原
B．半抗原
C．抗体
D．不完全抗体
E．抗原抗体复合物
参考答案：A
用所给词的适当形式填空。
1. It's a _____ (wind) day today. Let's fly the kite.
2. Everyone in our class _____ (like) him.
3. Look at the group of _____ (man). They are working hard.
4. Look! A lot of people are _____ (lie) on the beach.
5. The people on the beach look really _____ (relax).
儿童四肢骨关节
