皮皮学，免费搜题
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【单选题】
重症鞭虫病病人的主要症状为 ( )A.
烦躁不安、失眠、食欲减退
B.
消化功能紊乱、肠梗阻
C.
腹泻、便血、直肠脱垂、贫血和虚弱等症状
D.
并发阑尾炎、肠穿孔
E.
引起肺部感染、咳嗽和咯血
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皮皮学刷刷变学霸
举一反三
【单选题】—John, why do you come to Beijing? —I come here____a good job. [ ]
A.
looking for
B.
look for
C.
to look for
D.
looked for
【单选题】— Could you tell me ? — Yes. To take back my dictionary. [ ]
A.
why did you come here
B.
when do you come here
C.
why you came here
D.
when you come here
【单选题】_____ to ask me for help? [ ]
A.
Why don't come
B.
Why not come
C.
Why you don't come
D.
Why not to come
【单选题】Could you tell me ______ for the meeting yesterday? [ ]
A.
why did you come late
B.
why you came late
C.
why do you come late
D.
why have you come late
【多选题】以下关于绝缘油击穿电压检测，说法正确的是（）。
A.
电极间距离应为2.5mm正负0.05mm，要用标准规校准
B.
油中有水分及其他杂质时对击穿电压有明显影响，试样一定要摇荡均匀后注入油杯
C.
油杯不用时应清空，加盖，保存在干燥的地方，防止受潮
D.
将试样杯放入测量仪上，如使用搅拌，应打开搅拌器。测量并记录试样温度
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