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【单选题】
文艺工作者的舞台就在人民中间,只有扎根人民、服务人民,文艺作品才有旺盛的生命力。因为( ) 1 实践要以客观事物的正确性认识为源泉 2 实践是认识的来源和认识发展的动力 3 实践是把文艺作品写进群众心坎的基础 4 文艺作品对人们改造世界具有促进作用
A.
①③
B.
②③
C.
②④
D.
①④
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举一反三
【判断题】Phospholipids move rapidly in a lipid bilayer.
A.
正确
B.
错误
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【判断题】Phospholipids move rapidly in a lipid bilayer.
A.
正确
B.
错误
查看完整题目与答案
【单选题】以下关于塑料袋盛热食的危害说法错误的是：
A.
塑料袋添加的颜料遇到油时会被溶出，这些颜料主要是有一定致癌性的偶氮类化合物，对人体产生毒害作用
B.
塑料袋中含有塑化剂，它可以让塑料的柔韧性变得更好，但危害不容小觑
C.
塑化剂在油性环境或者加热情况下，迁移到食物中
D.
使用白色无味或专业、有安全生产标志的食品级塑料袋，遇到热油或高温，不会析出塑化剂
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【简答题】( ) is the subcellular organelle to synthesize phospholipids.
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【多选题】Membrane phospholipids move within the lipid bilayer in several different ways:
A.
lateral diffusion
B.
flexion
C.
rotation
D.
flip-flop (rare)
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【简答题】Never try to move that delicate part; it is (move) ______.
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【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
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【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
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【单选题】The backbone of phospholipids is _________________________.
A.
L-glycerol 3-phosphate
B.
D-glycerol 3-phosphate
C.
glycerol
D.
sphingosine
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【简答题】phospholipids (磷脂)
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相关题目：
【判断题】Phospholipids move rapidly in a lipid bilayer.
A.
正确
B.
错误
查看完整题目与答案
【判断题】Phospholipids move rapidly in a lipid bilayer.
A.
正确
B.
错误
查看完整题目与答案
【单选题】以下关于塑料袋盛热食的危害说法错误的是：
A.
塑料袋添加的颜料遇到油时会被溶出，这些颜料主要是有一定致癌性的偶氮类化合物，对人体产生毒害作用
B.
塑料袋中含有塑化剂，它可以让塑料的柔韧性变得更好，但危害不容小觑
C.
塑化剂在油性环境或者加热情况下，迁移到食物中
D.
使用白色无味或专业、有安全生产标志的食品级塑料袋，遇到热油或高温，不会析出塑化剂
查看完整题目与答案
【简答题】( ) is the subcellular organelle to synthesize phospholipids.
查看完整题目与答案
【多选题】Membrane phospholipids move within the lipid bilayer in several different ways:
A.
lateral diffusion
B.
flexion
C.
rotation
D.
flip-flop (rare)
查看完整题目与答案
【简答题】Never try to move that delicate part; it is (move) ______.
查看完整题目与答案
【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
查看完整题目与答案
【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
查看完整题目与答案
【单选题】The backbone of phospholipids is _________________________.
A.
L-glycerol 3-phosphate
B.
D-glycerol 3-phosphate
C.
glycerol
D.
sphingosine
查看完整题目与答案
【简答题】phospholipids (磷脂)
查看完整题目与答案