| When a disease of epidemic proportions
rips into the populace, scientists immediately get to work, trying to locate the
source of the affliction and find ways to combat it. Oftentimes, success is
achieved, as medical science is able to isolate the parasite, germ or cell that
causes the problem and finds ways to effectively kill or contain it. In the most
serious of cases, in which the entire population of a region or country may be
at grave risk, it is deemed necessary to protect the entire population through
vaccination, so as to safeguard lives and ensure that the disease will not
spread. The process of vaccination allows the patient’s body to develop immunity to the virus or disease so that, if it is encountered, one can ward it off naturally. To accomplish this, a small weak or dead strain of the disease is actually injec A. to comment and criticize. B. to demonstrate and argue. C. to interest and entertain. D. to explain and inform. [单选题]任何一种可诱导特定免疫应答、并与这一应答的产物起相互作用的物质是以下哪个?
A.抗原提呈细胞 B.抗体 C.抗原 D.免疫细胞 [单选题]‒年3月1日，2539次列车发现一旅客持当日当次列车车票，携带一背包15千克，一手提包9千克，列车应（）。
A.补收24千克上车站至下车站四类包裹运费。 B.加倍补收24千克上车站至下车站四类包裹运费。 C.免收运费。 D.补收4千克上车站至下车站四类包裹运费。 [判断题]64D半自动闭塞在区间空闲时BSJ是吸起的，区间闭塞时BSJ是落下的。( )
A.正确 B.错误 [单项选择]商业银行的代理业务不包括( )。
A. 代理财政性存款 B. 代发工资 C. 代理财政投资 D. 代销开放式基金 [单选题]无人机电气系统一般包括____3个部分（ ）
A.电源、电缆、接插件 B.电源、配电系统、用电设备 C.电缆、供电系统、用电设备 [单选题]3.59.第59题
变压器装设磁吹避雷器可以保护变压器绕组不因过电压而损坏。 A.正确 B.错误 [单选题]某省政府根据国务院的授权，决定由城建规划局统一行使数个政府职能部门的行政处罚权。根据《行政处罚法》的规定，城建规划局不能行使下列哪一项职权？（ ）
A.A.交通管理机关的罚款权 B.B.环境保护局的罚款权 C.C.公安机关的行政拘留权 D.D.工商行政管理部门的吊销营业执照权 我来回答: 提交
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