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【单选题】
在方差分析中,已知总自由度是15,组间自由度是4,组内自由度为()。A.
19
B.
11
C.
4
D.
5
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举一反三
【单选题】下列关于急性肾小球肾炎临床表现的叙述不妥的是
A.
本病好发于儿童，男性多于女性
B.
血尿常为患者起病的首发症状和就诊的原因
C.
80%以上的病人可出现水肿，多表现为晨起眼睑水肿
D.
约80%的病人出现严重的高血压
E.
肾功能于利尿后数日恢复正常，极少数出现急性肾衰竭
【简答题】As a physician who travels quite a lot, I spend a lot of time on planes listening for that dreaded “Is there a doctor on board?” announcement. I’ve been 16 only once — for a woman who had merely faint...
【单选题】As a physician who travels quite a lot, I spend a lot of time on planes listening for that dreaded 'Is there a doctor un board?' announcement. I've been 【C1】______ only once—for a woman who had merely...
A.
called
B.
addressed
C.
informed
D.
surveyed
【单选题】—Do you spend a lot of time____ computer? —No, but I spend much time_____ doing my homework.
A.
on; in
B.
in; on
C.
on; on
D.
in; in
【单选题】As a physician who travels quite a lot, I spend a lot of time on planes listening for that dreaded 'Is there a doctor on board?' announcement. I've been【C1】______only once--for a woman who had merely ...
A.
called
B.
addressed
C.
informed
D.
surveyed
【单选题】What does 'I'd rather not spend a lot of money' imply?
A.
She prefers to spend money on something else.
B.
Tickets in downtown theaters are very expensive.
C.
People cannot help buying things if they go downtown.
D.
It would take a long drive to get there.
【简答题】They spend a lot of time together because they ____________(有许多共同之处).
【简答题】无菌切口消毒应由 开始向 进行涂擦,消毒范围距切口四周至少 cm .
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