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【单选题】
下列对急性阿米巴痢疾患者进行病原学检查注意的情况不包括A.
及时送检标本
B.
冬季注意标本保温
C.
注意防止尿液、药物等对采集标本的影响
D.
取脓血便中脓血部分，采用生理盐水涂片法检查
E.
必须采集发热患者的粪便才能检出病原体
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【简答题】阅读理解。 Bob Pearson is an old man. He hasn't got a wife, but he is a father of four children. He has got two sons and two daughters. One son is from England. His name is Bill. The other (另一个) son is fro...
【单选题】下述对有功功率的描述不正确的是______
A.
单口网络的有功功率表示该单口网络实际消耗的功率
B.
有功功率守恒
C.
单口网络的有功功率等于该单口网络中所有电阻消耗的功率之和
D.
如果单口网络的端口电压与电流为关联参考方向，则其有功功率等于端口电压、电流幅值的乘积再乘以单口网络的功率因数
【单选题】(2017·山西)实验表明,磁体能吸引1元硬币,对这种现象解释正确的是( )
A.
硬币一定是铁做的,因为磁体能吸引铁
B.
硬币一定是铝做的,因为磁体能吸引铝
C.
磁体的磁性越强,能吸引的物质种类越多
D.
硬币只含有磁性材料,磁化后能被吸引
【判断题】Pearson has pieced together the work of hundreds of
researchers around the world to produce a unique millennium technology calendar
that gives the latest dates when we can expect hundreds of key break...
A.
正确
B.
错误
【简答题】阅读理解。 Bob Pearson is an old man. He has two big houses and a new car. He has no wife.But he is a father of four children. He has two sons and two daughters. One son is from England. His name ...
【判断题】Pearson has pieced together the work of hundreds of
researchers around the world to produce a unique millennium technology calendar
that gives the latest dates when we can expect hundreds of key break...
A.
正确
B.
错误
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