【单选题】【消耗次数：1】
能够使肌肉强直收缩的毒素是（ ）
①
霍乱肠毒素
②
金黄色葡萄球菌致热外毒素
③
肉毒毒素
④
破伤风痉挛毒素
⑤
白喉毒素
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相关题目
【单选题】
外毒素的特点不包括（ ）
①
能够脱毒形成类毒素
②
作用没有选择性
③
稳定性差
④
刺激机体产生抗毒素
⑤
由G<sup>+</sup> 菌和部分G<sup>-</sup> 菌产生
【单选题】
关于白喉抗毒素说法正确的是（ ）
随机题目
【单选题】
A: Sorry, I couldnt come to the party? I was sick that day. B: [填空].
①
I dont know that
②
Yes, well have another party
③
Thats all right
④
No, the party wasnt held
【单选题】
A: This package is too heavy for me to carry it upstairs. B: [填空].
①
You may ask for help.
②
Please do me a favor
③
Ill give you a hand
④
Id come to help.
【单选题】
A: Im sorry to have kept you waiting. B: [填空].
①
It doesnt matter
②
Dont mind
③
My pleasure
④
Youre welcome
【单选题】
A: Could you help me put up the posters on the wall? B: [填空].
①
I will
②
No problem
③
I would like
④
Thats a good idea
【单选题】
A: What do you prefer, meat or fish? B: [填空].
①
Yes, thank you
②
All right
③
Help yourself, please
④
Either will do
【单选题】
A: Id like to book a room, please. B: [填空]
①
Single or double?
②
Which room?
③
Cheap or expensive?
④
We dont have rooms here.
【单选题】
A: Waiter! B: [填空]? A: I cant eat this. Its too salty.
①
Yes, sir
②
What
③
All right
④
Pardon
【单选题】
A: Merry Christmas! B: [填空].
①
The same to you
②
Thank you
③
I hope so
④
Merry Christmas!
【单选题】
A: Where does he come from? B: [填空], but her accent suggests Beijing.
①
Im sure
②
Im not sure
③
Perhaps
④
Maybe
【单选题】
A: I have an appointment with Dr. Lee. B: [填空]
①
Please wait for a minute.
②
Are you sick?
③
Tell me about your appointment.
④
Dr. Lee didnt tell me.