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【单选题】
患者,女性,35 岁,在甲状腺次全切除后 4 小时,突感呼吸困难、颈部肿胀、口唇发绀,紧急处理第一A.
气管切开
B.
立即拆开颈部缝线，去除血块
C.
吸氧
D.
请麻醉医师插管
E.
注射呼吸兴奋剂
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举一反三
【单选题】After formation of replication fork
A.
Both the new strands are synthesized discontinuously
B.
One strand is synthesized continuously and the other discontinuously
C.
Both the new strands are synthesized continuously
D.
RNA primer is required only for the synthesis of one new strand
【单选题】Which are features of nuclear division by mitosis? 1. forms cells of equal size to the parent cell 2. forms genetically identical cells 3. semi-conservative replication of DNA
A.
1 and 2 only
B.
2 and 3 only
C.
2 only
D.
1, 2 and 3
【简答题】听录音，选择正确的图片，将其序号填入题前括号里。 ( ) 1. What day is it today? ( ) 2. What's your favourite food? ( ) 3. What do you do on Sundays? ( ) 4. What's your English teacher like? ( ) 5. What woul...
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