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【单选题】
心肌缺血-再灌注损伤时下列哪项不正确?( )A.
心肌舒缩功能障碍
B.
ATP减少
C.
心律失常
D.
心肌收缩功能降低不可逆
E.
心肌超微结构损伤
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举一反三
【简答题】( ) is the subcellular organelle to synthesize phospholipids.
【简答题】Never try to move that delicate part; it is (move) ______.
【单选题】Phospholipids are NOT necessary for which of the following?
A.
(A) cell walls
B.
(B) Golgi apparatus
C.
(C) plasma membrane
D.
(D) mitochondria
E.
(E) endoplasmic reticulum
【多选题】How do r etrotransposons move?
A.
Retrotransposons are first transcribed into an RNA intermediate.
B.
Next, a double-stranded DNA copy of this RNA is synthesized by the enzyme reverse transcriptase. This DNA copy is then inserted into the target location, which can be on either the same or a different DNA molecule.
C.
The donor retrotransposon remains at its original location, so each time it transposes, it duplicates itself.
D.
These mobile genetic elements are called retrotransposons because at one stage in their transposition their genetic information flows backward, from RNA to DN
【单选题】The backbone of phospholipids is _________________________.
A.
L-glycerol 3-phosphate
B.
D-glycerol 3-phosphate
C.
glycerol
D.
sphingosine
【简答题】phospholipids (磷脂)
【简答题】(词性) Experts believe both IQ and EQ are of (important)__________for a child .
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