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【单选题】
交叉柱镜检查柱镜轴向，柱试片为1.50×55，翻转交叉柱镜，红点近水平向清晰，试片柱镜轴位调整为( )。A.
-1.50×45
B.
-1.50×50
C.
-1.50×60
D.
-1.50×65
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皮皮学刷刷变学霸
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 prive medicine
D.
has reached a maintenance level
【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
【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
【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
【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
【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
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