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【单选题】
关于pH对酶活性的影响,下列哪项不正确?
A.
影响必需基团的解离状态
B.
影响底物的解离状态
C.
破坏酶蛋白的一级结构
D.
影响酶与底物结合
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参考答案：
举一反三
【单选题】A patient complains of loss of hearing in the right ear. Examination reveals ankylosis (otosclerosis. of the footplate of the stapes to the surrounding bone. Which part of the bony labyrinth is involv...
A.
Aditus ad antrum
B.
Cochlear (round. window
C.
Cochlear duct
D.
Internal acoustic meatus
E.
Vestibular (oval. window
查看完整题目与答案
【单选题】Refrigeration machinery is often surveyed before loading reefer cargo. This survey is usually performed by the ______.
A.
MSA
B.
CCS
C.
CCIQ
D.
local port authority
查看完整题目与答案
【判断题】Loading loss includes oil and gas loss at automobile gas stations and oil and gas loss during loading and unloading of trains, cars, ships and other means of transport.This part of the loss is much gr...
A.
正确
B.
错误
查看完整题目与答案
【单选题】Edwards综合征又称为
A.
45,X
B.
47,XXX
C.
47,XXY
D.
47,XYY
E.
18三体综合征
查看完整题目与答案
【简答题】The loss of the battle for Stalingrad finally turned the tide against Hitler. The German victories were over, thanks in part to the Russian winter.
查看完整题目与答案
【多选题】影响接轨点选择的主要因素有哪些？
A.
路网规划
B.
线路走向
C.
主要客货流方向
D.
既有区段站的分布及当地的接轨条件
E.
接轨方向选择
查看完整题目与答案
【单选题】During the earthquake,the great part of damage and loss of life was_____the poor quality of the buildings, which couldn’t fight against its force.
A.
as for
B.
instead of
C.
according to
D.
due to
查看完整题目与答案
【单选题】Prokaryote不具备下列哪种结构
A.
mitochondrion
B.
ribosome
C.
cell wall
D.
cell membrane
查看完整题目与答案
【单选题】The loss of U.S. predominance in the world economy in the 1980s is manifested in the fact that the American______.
A.
TV industry had withdrawn to its domestic market
B.
semiconductor industry had been taken over by foreign enterprises
C.
machine-tool industry had collapsed after suicidal actions
D.
auto industry had lost part of its domestic market
查看完整题目与答案
【单选题】Edwards综合征又称为（）体三体综合征
A.
13
B.
18
C.
19
D.
21
E.
22
查看完整题目与答案
相关题目：
【单选题】A patient complains of loss of hearing in the right ear. Examination reveals ankylosis (otosclerosis. of the footplate of the stapes to the surrounding bone. Which part of the bony labyrinth is involv...
A.
Aditus ad antrum
B.
Cochlear (round. window
C.
Cochlear duct
D.
Internal acoustic meatus
E.
Vestibular (oval. window
查看完整题目与答案
【单选题】Refrigeration machinery is often surveyed before loading reefer cargo. This survey is usually performed by the ______.
A.
MSA
B.
CCS
C.
CCIQ
D.
local port authority
查看完整题目与答案
【判断题】Loading loss includes oil and gas loss at automobile gas stations and oil and gas loss during loading and unloading of trains, cars, ships and other means of transport.This part of the loss is much gr...
A.
正确
B.
错误
查看完整题目与答案
【单选题】Edwards综合征又称为
A.
45,X
B.
47,XXX
C.
47,XXY
D.
47,XYY
E.
18三体综合征
查看完整题目与答案
【简答题】The loss of the battle for Stalingrad finally turned the tide against Hitler. The German victories were over, thanks in part to the Russian winter.
查看完整题目与答案
【多选题】影响接轨点选择的主要因素有哪些？
A.
路网规划
B.
线路走向
C.
主要客货流方向
D.
既有区段站的分布及当地的接轨条件
E.
接轨方向选择
查看完整题目与答案
【单选题】During the earthquake,the great part of damage and loss of life was_____the poor quality of the buildings, which couldn’t fight against its force.
A.
as for
B.
instead of
C.
according to
D.
due to
查看完整题目与答案
【单选题】Prokaryote不具备下列哪种结构
A.
mitochondrion
B.
ribosome
C.
cell wall
D.
cell membrane
查看完整题目与答案
【单选题】The loss of U.S. predominance in the world economy in the 1980s is manifested in the fact that the American______.
A.
TV industry had withdrawn to its domestic market
B.
semiconductor industry had been taken over by foreign enterprises
C.
machine-tool industry had collapsed after suicidal actions
D.
auto industry had lost part of its domestic market
查看完整题目与答案
【单选题】Edwards综合征又称为（）体三体综合征
A.
13
B.
18
C.
19
D.
21
E.
22
查看完整题目与答案
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