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【单选题】
下图表示 3 H-亮氨酸标记细胞内的分泌蛋白，追踪不同时间具有放射性的分泌蛋白颗粒在细胞内分布情况和运输过程。下列相关说法中，错误的是 [ ]A.
该过程可以体现生物膜之间结构和功能具有密切的联系
B.
放射性出现的先后顺序是核糖体→内质网→高尔基体→分泌小泡
C.
图中所采用的研究方法可以用于研究DNA的半保留复制
D.
该过程无需线粒体的参与
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皮皮学刷刷变学霸
举一反三
【单选题】When ______ why he walked in without permission, he just stared at us and said nothing.
A.
asking
B.
asked
C.
being asked
D.
to be asked
【单选题】When stared at the alleged liar with a look of disbelief, what will not an honest person perform?
A.
lips pressed together,
B.
brows up
C.
upper eyelid tensed
D.
upper eyelid pulled down to glare
【单选题】When ______ why he came in without permission, he stared at us, saying nothing.
A.
asking
B.
asked
C.
being asked
D.
to be asked
【单选题】The woman in the shop stared at them strangely, because ______.
A.
she saw foreigners for the first time
B.
they had on funny clothes
C.
she wondered why they came into the shop
D.
they didn't give her any money
【简答题】一般的说,主减速比大时,加速时间较短,燃油经济性 。
【单选题】女34岁,第一胎孕38周,医生测量骨盆,正常骨盆的形态是
A.
骨盆的3个假想平面均呈纵椭圆形
B.
骨盆的入口和中骨盆平面为纵椭圆形
C.
骨盆的入口平面呈横椭圆形
D.
骨盆的3个假想平面均呈横椭圆形
E.
骨盆的入口及出口平面呈纵椭圆形
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