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【单选题】
护士从患者的书信、日记了解患者的情况是属于A.
直接观察
B.
间接观察
C.
全面观察
D.
间断观察
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皮皮学刷刷变学霸
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【简答题】果蝇腹部刚毛数是一种数量性状。一项对雌性果蝇腹部刚毛数目的研究得到以下方差的估计值： VP=6．08 VG=3．1 7 VE=2．91 试求该性状的广义遗传率(H2)。
【单选题】果蝇腹部刚毛数是一种数量性状,一项对果蝇腹部刚毛数目的研究中的到以下方差估计值,VA=10,VG=20,VP=60,试求该性状的广义遗传率
A.
1/6
B.
1/2
C.
1/3
D.
1/4
【简答题】任务型阅读。 Dear Michael and Lisa, You're invited to a farewell(告别的)party for the ' Liu family's visit to Australia. ' The Liu family will leave on November 4th. The Liu family spent a happy week here with...
【单选题】You ________ to the meeting, why didn't you go? [ ]
A.
be invited
B.
will be invited
C.
were invited
D.
are invited
【简答题】D I know what you’re thinking : pizza （比萨饼）? For breakfast? But the truth is that you can have last night’s leftovers in the a. m. if you want to... . I know lots of women who skip breakfast （不吃早餐） , ...
【单选题】变直径管流，细断面直径Di，粗断面直径D2 =2Di，粗细断面雷诺数的关系是( )。
A.
Re1=0.5Re2
B.
Re1=Re2
C.
Re1=1.5Re2
D.
Re1=2Re2
【简答题】D I know what you’re thinking: pizza（比萨饼）? For breakfast? But the truth is that you can have last night’s leftovers in the a.m. if you want to. I know lots of women who skip breakfast（不吃早餐）, and they ...
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