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【单选题】
神经元的胞体与轴突之间的物质运输和交换依赖于
A.
血液供应
B.
细胞外液
C.
突触传递
D.
非突触性化学传递
E.
双向轴浆运输
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【单选题】正常尿液比重波动范围是
A.
1.10~1.015
B.
1.015~1.025
C.
1.005~1.020
D.
1.015~1.035
E.
1.025~1.o45
【单选题】缺少维生素A导致夜盲症是因为
A.
合成视黄醛的原料减少,视紫红质减少。
B.
视锥细胞减少。
C.
视杆细胞减少。
D.
双极细胞功能下降
【单选题】In short, there is little about today's celebrity culture that is fundamentally more harmful than the types of celebrity children have encountered in the past. Provided children are given appropriate ...
A.
restate their opinion
B.
summarize the main points
C.
make a recommendation
D.
make a prediction (often stating what may happen if the recommended action is or is not taken)
【简答题】While accepting that this sequence fits the archaeological profile of those sites, which were occupied continuously over many thousands of years a number of writers have warned that the underlying ass...
【单选题】The function of the periosteum in supporting new bone growth is determined fundamentally by paracrine/endocrine signals that regulate the differentiation of which of the following connective tissue ce...
A.
Fibroblasts
B.
Osteoblasts
C.
Osteoclasts
D.
Osteocytes
E.
Osteoprogenitor cells
【简答题】夜盲症是因为缺少哪种维生素所导致?
【单选题】夜盲症是因为
A.
视杆细胞减少
B.
色素上皮顶部突起增多
C.
视锥细胞膜盘脱落
D.
视紫红质缺乏
E.
维生素C不足
【单选题】正常儿童的尿液比重范围是()
A.
<1.010
B.
1.005~1.015
C.
1.006~1.008
D.
1.010~1.025
E.
>1.025
【单选题】正常儿童的尿液比重范围是( )
A.
1.005~1.015
B.
1.006~1.008
C.
1.010~1.025
D.
小于1.010
E.
大于1.025
【单选题】There once lived a poor tailor who had a son called Aladdin, a careless, idle boy【21】would do nothing but play all day long in the streets with little idle boys like himself. This so grieved the fathe...
A.
he
B.
who
C.
which
D.
what
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