问题
判断题
A群1型志贺痢疾杆菌既产生内毒素,又产生外毒素致病.()
答案
参考答案:对
A群1型志贺痢疾杆菌既产生内毒素,又产生外毒素致病.()
参考答案:对
从对话后的方框中选择适当的选项补全对话。
Boy: Oh, wow! You’re Paula, aren’t you? G: That’s right. B: But you used to be really quiet, didn’t you? G: ____________小题2:___________ B: No, you weren’t. But you were always friendly. Wait a minute! ________小题3:__________ G: Yes, I did._____________小题4:_______ I play soccer and I’m on the swim team. B; ____________小题5:___________ |