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参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】Vice Vaccines At first glance, vice vaccines look just great. These injections promise to inactivate drugs such as cocaine, heroin and nicotine in the bloodstream before they reach the brain. Without ...
A.
the injection of drugs into the bloodstream
B.
the inactivation of drugs before they reach the brain
C.
the strong sensation aroused by taking drugs
D.
the addiction to drugs
【单选题】此小儿的年龄是（） A．10个月 B．1岁 C．2岁 D．3岁 E．4岁
A.
小儿身高80cm，前囟门已闭，头围48cm，乳牙20枚，会跳并能用简单的语言表达自己的需要，对人、事有喜乐之分。