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【判断题】
Rh阳性是指红细胞表面含有D抗原A.
正确
B.
错误
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【单选题】On the one hand, the spammers on social media can be a high risk towards the security of legitimate users and on the other hand some of the legitimate users, such as bloggers can pollute the _________...
A.
) surface
B.
) buttons
C.
) results
D.
) disks
【简答题】A.Finding the true nature of subatoraic particles. B.Their work on very high frequency radio waves. C.Laying the foundations of modern mathematics. D.Their discovery of the laws of cause and effect.
【单选题】It's high time you to work on the plan for our journey to those beautiful mountains in Northern Europe.
A.
start
B.
would start
C.
started
D.
had started
【单选题】The teacher's insistence on high standards resulted ______ excellent work.
A.
in
B.
from
C.
with
D.
to
【单选题】The teacher's insistence on high standards resulted _____ excellent work .
A.
with
B.
from
C.
in
D.
to
【单选题】关于浆液性腺泡的描述,错误的是( )
A.
腺细胞基部胞质嗜酸性较强
B.
分泌颗粒聚集在腺细胞顶部
C.
腺细胞含粗面内质网和核糖体较多
D.
分泌物中含消化酶
E.
以胞吐方式释放分泌物
【单选题】关于多聚核糖体的描述，错误的是（）
A.
由一条mRNA与多个核糖体构成
B.
在同一时刻合成相同长度的多肽链
C.
合成的多肽链结构完全相同
D.
可提高蛋白质合成的速度
E.
核糖体沿mRNA链移动的方向为5′→3′
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