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【单选题】
生物间的物质转换和能量传递主要是通过
A.
新陈代谢
B.
食物链
C.
生物转化
D.
生物富集
E.
生物迁移
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参考答案：
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【单选题】患者男，78岁。因行髋关节置换术后3d，出现发热伴呼吸困难收入重症监护病房。进入ICU后，因患者呼吸窘迫伴严重低氧血症立即行气管插管，呼吸机辅助呼吸，气道内吸出大量黄脓痰。体格检查：烦躁不安，血压146/66mmHg，脉搏105/min，体温38.7℃。双肺广泛干湿啰音。腹部膨隆，肠鸣音弱。既往有高血压、糖尿病史。血常规：WBC16×10 9 /L，中性粒细胞0.88，血肌酐152μmol/L。经...
A.
静脉滴注碳酸氢钠
B.
静脉滴注酚妥拉明
C.
腹腔透析
D.
间隙性血液透析
E.
静脉-静脉血液滤过
F.
持续性静脉-静脉血液透析滤过
G.
血浆吸附
查看完整题目与答案
【单选题】( ) of polychlorinated biphenyl onto sea bed sediment and marine plankton was examined.
A.
absorbent
B.
absorption
C.
adsorbent
D.
adsorption
查看完整题目与答案
【单选题】Polychlorinated biphenyls (PCBs) are organic compounds that were once used in industrial products such as paints and adhesives. However, open use of PCBs has been banned since 1970s, when it became cl...
A.
Because they contaminate soil.
B.
Because they contribute to global warming.
C.
Because they break down very slowly.
D.
Because they degrade organic matter.
查看完整题目与答案
【简答题】多氯联苯(polychlorinated biphenyl,PCB):
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【简答题】多氯联苯(polychlorinated biphenyls，PCB s )
查看完整题目与答案
【简答题】BPR的核心内容包括清除非增值活动、 必要活动、任务整合、过程任务自动化。
查看完整题目与答案
【简答题】细菌感染牙髓的有害物质
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【单选题】Why does the article refer to polychlorinated biphenyls?
A.
to give an example of a product thought to be harmless that was later found to be toxic
B.
to give an example of a product that has many uses
C.
to explain another new technology
D.
to give an example of a product created with nanomaterials
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【简答题】Polychlorinated have already been widely used to manufacture electronic circuit boards. (biphenyl / phenyl)
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【单选题】What are the potential risks of nanomaterials?
A.
There are so many products being created that it is hard to track them.
B.
Nanomaterials are so small that they cannot be seen by the human eye.
C.
The small size of nanomaterials may allow them to interfere with biological mechanisms.
D.
Nanomaterials are similar in structure to polychlorinated biphenyls.
查看完整题目与答案
相关题目：
【单选题】患者男，78岁。因行髋关节置换术后3d，出现发热伴呼吸困难收入重症监护病房。进入ICU后，因患者呼吸窘迫伴严重低氧血症立即行气管插管，呼吸机辅助呼吸，气道内吸出大量黄脓痰。体格检查：烦躁不安，血压146/66mmHg，脉搏105/min，体温38.7℃。双肺广泛干湿啰音。腹部膨隆，肠鸣音弱。既往有高血压、糖尿病史。血常规：WBC16×10 9 /L，中性粒细胞0.88，血肌酐152μmol/L。经...
A.
静脉滴注碳酸氢钠
B.
静脉滴注酚妥拉明
C.
腹腔透析
D.
间隙性血液透析
E.
静脉-静脉血液滤过
F.
持续性静脉-静脉血液透析滤过
G.
血浆吸附
查看完整题目与答案
【单选题】( ) of polychlorinated biphenyl onto sea bed sediment and marine plankton was examined.
A.
absorbent
B.
absorption
C.
adsorbent
D.
adsorption
查看完整题目与答案
【单选题】Polychlorinated biphenyls (PCBs) are organic compounds that were once used in industrial products such as paints and adhesives. However, open use of PCBs has been banned since 1970s, when it became cl...
A.
Because they contaminate soil.
B.
Because they contribute to global warming.
C.
Because they break down very slowly.
D.
Because they degrade organic matter.
查看完整题目与答案
【简答题】多氯联苯(polychlorinated biphenyl,PCB):
查看完整题目与答案
【简答题】多氯联苯(polychlorinated biphenyls，PCB s )
查看完整题目与答案
【简答题】BPR的核心内容包括清除非增值活动、 必要活动、任务整合、过程任务自动化。
查看完整题目与答案
【简答题】细菌感染牙髓的有害物质
查看完整题目与答案
【单选题】Why does the article refer to polychlorinated biphenyls?
A.
to give an example of a product thought to be harmless that was later found to be toxic
B.
to give an example of a product that has many uses
C.
to explain another new technology
D.
to give an example of a product created with nanomaterials
查看完整题目与答案
【简答题】Polychlorinated have already been widely used to manufacture electronic circuit boards. (biphenyl / phenyl)
查看完整题目与答案
【单选题】What are the potential risks of nanomaterials?
A.
There are so many products being created that it is hard to track them.
B.
Nanomaterials are so small that they cannot be seen by the human eye.
C.
The small size of nanomaterials may allow them to interfere with biological mechanisms.
D.
Nanomaterials are similar in structure to polychlorinated biphenyls.
查看完整题目与答案
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