皮皮学，免费搜题
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搜题
【单选题】
机体注射类毒素属于哪种免疫A.
自然主动免疫
B.
人工自动免疫
C.
自然被动免疫
D.
人工被动免疫
E.
非特异性抵抗力
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皮皮学刷刷变学霸
举一反三
【简答题】A．They pressed the alarm. B．They tried to stop him. C．They stood aside watching him gathering the money. D．They were too frightened to do anything.
【单选题】The hospital may have exposed the patients to the viruses, because
A.
they tried to protect their delicate instruments.
B.
they didn't follow the policy accordingly.
C.
they didn't know how to follow the policy sometimes.
D.
they have good intentions but the end result is bad.
【简答题】They tried to restrict access to ________ they believed to be erous areas. A) what B) which C) that D) everywhere
【单选题】They tried to restrict access to ( ) they believed to be dangerous areas.
A.
what
B.
which
C.
that
D.
everywhere
【单选题】They tried to restrict access to ______ they believed to be dangerous areas.
A.
which
B.
what
C.
that
D.
everywhere
【单选题】What happened to the workers when they tried to save their colleague in the tank?
A.
They lost their balance.
B.
They still kept their balance.
C.
They lost consciousness.
D.
They died immediately.
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