passive immunization是什么意思 passive immunization怎么读
passive immunization的相关资料
passive immunization的用法和样例
- This is called passive immunisation.
这叫作被动免疫。 - Although passive immunization now seems to hold the most promise, active immunization is not out of the running.
虽然目前看来是被动免疫最具潜力，但是主动免疫也不见得就此退出赛局。
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