皮皮学，免费搜题
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【单选题】
企业的经济效益是指
A.
企业的生产总值和生产成本的比率
B.
企业的投资和收入的比率
C.
企业的生产总值和利润的比例
D.
企业的产量和投入的比例
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举一反三
【单选题】The cells of the body have varied and essential roles. Skin cells protect the whole body; red blood cells carry oxygen; and bone cells build the skeleton. Cells multiply fast when a person is growing,...
A.
needs a lot of food
B.
produces cancerous cells
C.
has need for preventive medicine
D.
has reached a maintenance level
查看完整题目与答案
【单选题】The human body is incredibly __________. When you donate a pint of blood, you lose about 3.5 trillion red blood cells, but your body quickly replaces them.
A.
supple
B.
flexible
C.
strong
D.
resilient
查看完整题目与答案
【单选题】When red blood cells of blood group A meet serum of blood group B, the red blood cells will ( )
A.
aggregation
B.
adhere
C.
overlap
D.
agglutinate
E.
clot
查看完整题目与答案
【多选题】下列关于残肢的评定，描述正确的是（）
A.
残肢形状以圆锥形为佳，而并非圆柱形
B.
残肢皮肤条件好坏直接影响假肢的穿戴
C.
残肢长度影响假肢选择的种类
D.
关节活动度直接影响假肢代偿功能
E.
前臂截肢后残存肌肉的多少和产生的肌电信号是判定能否佩戴肌电假手的重要依据
查看完整题目与答案
【单选题】Red blood cells are not easily broken when they flow through narrow capillaries and sinuses. The main reason is that
A.
The red blood cells are in the shape of a double concave disc
B.
higher viscosity in red blood cells
C.
Better elasticity of red blood cell membrane
D.
Slow blood flow here
查看完整题目与答案
【单选题】The cells of the body have varied and essential roles. Skin cells protect the whole body; red blood cells carry oxygen; and bone cells build the skeleton. Cells multiply fast when a person is growing,...
A.
during the growing years
B.
at all times
C.
during the period of childhood
D.
after reaching maturity
查看完整题目与答案
【单选题】蛋白质是两性电解质，当其带负电荷时，溶液的pH值为( )
A.
酸性
B.
碱性
C.
pH=pI
D.
pHpI
查看完整题目与答案
【单选题】生物膜的主要化学成分是
A.
蛋白质和核酸类
B.
蛋白质和脂类
C.
蛋白质和糖类
D.
磷脂和多糖类
查看完整题目与答案
【多选题】国际工程合同履行的特有原则( )
A.
适当履行原则
B.
公平原则
C.
协作履行原则
D.
经济合理原则
E.
情势变更原则
查看完整题目与答案
【简答题】Red blood cells are an exception since they have nonuclei___________.A. when mature B. when grown C. when produced D. when increased
查看完整题目与答案
相关题目：
【单选题】The cells of the body have varied and essential roles. Skin cells protect the whole body; red blood cells carry oxygen; and bone cells build the skeleton. Cells multiply fast when a person is growing,...
A.
needs a lot of food
B.
produces cancerous cells
C.
has need for preventive medicine
D.
has reached a maintenance level
查看完整题目与答案
【单选题】The human body is incredibly __________. When you donate a pint of blood, you lose about 3.5 trillion red blood cells, but your body quickly replaces them.
A.
supple
B.
flexible
C.
strong
D.
resilient
查看完整题目与答案
【单选题】When red blood cells of blood group A meet serum of blood group B, the red blood cells will ( )
A.
aggregation
B.
adhere
C.
overlap
D.
agglutinate
E.
clot
查看完整题目与答案
【多选题】下列关于残肢的评定，描述正确的是（）
A.
残肢形状以圆锥形为佳，而并非圆柱形
B.
残肢皮肤条件好坏直接影响假肢的穿戴
C.
残肢长度影响假肢选择的种类
D.
关节活动度直接影响假肢代偿功能
E.
前臂截肢后残存肌肉的多少和产生的肌电信号是判定能否佩戴肌电假手的重要依据
查看完整题目与答案
【单选题】Red blood cells are not easily broken when they flow through narrow capillaries and sinuses. The main reason is that
A.
The red blood cells are in the shape of a double concave disc
B.
higher viscosity in red blood cells
C.
Better elasticity of red blood cell membrane
D.
Slow blood flow here
查看完整题目与答案
【单选题】The cells of the body have varied and essential roles. Skin cells protect the whole body; red blood cells carry oxygen; and bone cells build the skeleton. Cells multiply fast when a person is growing,...
A.
during the growing years
B.
at all times
C.
during the period of childhood
D.
after reaching maturity
查看完整题目与答案
【单选题】蛋白质是两性电解质，当其带负电荷时，溶液的pH值为( )
A.
酸性
B.
碱性
C.
pH=pI
D.
pHpI
查看完整题目与答案
【单选题】生物膜的主要化学成分是
A.
蛋白质和核酸类
B.
蛋白质和脂类
C.
蛋白质和糖类
D.
磷脂和多糖类
查看完整题目与答案
【多选题】国际工程合同履行的特有原则( )
A.
适当履行原则
B.
公平原则
C.
协作履行原则
D.
经济合理原则
E.
情势变更原则
查看完整题目与答案
【简答题】Red blood cells are an exception since they have nonuclei___________.A. when mature B. when grown C. when produced D. when increased
查看完整题目与答案