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【单选题】
下列细胞中，再生能力最强的是A.
心肌细胞
B.
骨细胞
C.
纤维细胞
D.
血管内皮细胞
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【简答题】塑料材料的特性有哪些?
【单选题】In the dim light, the ship floated ( ) on the banks of the Nile surrounded by swaying palms and ferns.
A.
tranquilly
B.
transparently
C.
taciturnly
D.
tenaciously
【单选题】What did the scientist in the red ship see or conclude? ______
A.
His beam of light does not appear to go straight up.
B.
The beam of light in the blueship appears to come straight down.
C.
Time passed more slowly in the red ship.
D.
The blue ship is shorter than the red one.
【简答题】塑料绝缘材料的特性?
【单选题】程某,女60岁,因肝癌发肝性脑病入院,病情逐渐加重,护士将病人仰卧,头偏向一侧,其目的是为了防止
A.
血压降低
B.
呕吐
C.
上消化道出血
D.
污染床单元
E.
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