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【单选题】
镜下血尿的正确概念是A.
离心尿沉渣每个高倍镜视野3个以上红细胞;
B.
显微镜下大量红细胞;
C.
尿呈洗肉水样;
D.
离心尿沉渣低倍镜下偶见个别红细胞;
E.
离心尿沉渣高倍镜下每视野10个以上红细胞;
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【单选题】–Have you handed in your schoolwork yet? --Yes, I have. I guess it ________ now.
A.
has graded
B.
is graded
C.
is being graded
D.
is grading
【单选题】关于控制角，表述正确的是下面的哪一个？
A.
从 SCR 承受正向阳极电压起到施加触发脉冲止的电角度称为触发延迟角，也称触发角或控制角。
B.
晶闸管在一个电源周期中处于通态的电角度称为控制角。
C.
晶闸管的控制角也称为导通角。
D.
晶闸管的控制角等于导通角加 30 度。
【简答题】阅读下面短文，用括号内所给动词的适当形式填空（必要时可加助动词或情态动词） The largest problem among agers is that they are too stressed. Mary, a 16-year-old girl, 小题1: .(worry) about her exams very often. Although she小题2: . (study) ...
【单选题】I guess Henry has been busy writing an article __________ recently. That’s why he couldn’t accept the invitation.
A.
out of date
B.
respectable
C.
or something
D.
know by heart
【简答题】10) I guess Henry has been busy writing an article ________ recently. That’s why he couldn’t accept the invitation.
【简答题】I guess Henry has been busy writing an article ____________ recently.That's why he couldn't accept the invitation.
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