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【单选题】
关于变构调节的叙述中,不正确的是 ()
A.
变构酶通常具有多个亚基
B.
变构剂与酶活性中心以外的部位结合
C.
变构剂与酶的结合是可逆的
D.
变构酶与变构剂结合后酶活性均提高
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参考答案：
举一反三
【单选题】Paul is performing a research study in which he is looking at the presentation of gender in children’s picture books. His unit of analysis is the book, so what is he studying?
A.
individuals
B.
groups
C.
social interactions
D.
organizations
E.
social artifacts
查看完整题目与答案
【简答题】Still seeking a destination for your long summer holidays? There is a good place which may be your favorite option. Arts of Hope is an overnight performing arts summer camp in Saint Paul, Minnesota, t...
查看完整题目与答案
【单选题】一宇航员要到离地球 5 光年的星球去旅行,现宇航员希望将这路程缩短为 3 光年,则他所乘火箭相对于地球速度是( )。
A.
0.5c
B.
0.6c
C.
0.8c
D.
0.9c
查看完整题目与答案
【多选题】在《小企业会计准则》 下,不能资本化的借款费用有( )
A.
生产经营期间不属于为购建固定资产的专门借款所发生的借款费用
B.
投资而发生的借款费用
C.
固定资产达到预定可使用状态之前发生的借款费用
D.
固定资产达到预定可使用状态之后发生的借款费用
查看完整题目与答案
【单选题】为了延长茎秆在逐稿器上的停留时间，提高分离效果，可以()。
A.
在逐稿器上方加档帘
B.
降低逐稿器转速
C.
增大逐稿器倾角
查看完整题目与答案
【单选题】为了延长茎秆在逐稿器上的停留时间,提高分离效果,可以( )。
A.
在逐稿器上方加档帘
B.
降低逐稿器转速
C.
增大逐稿器倾角
D.
提高逐稿器转速
查看完整题目与答案
【单选题】一宇航员要到离地球5光年的星球去旅行,现宇航员希望将这路程缩短为3光年,则他所乘飞船相对于地球速度是:
A.
c/2
B.
3c/5
C.
4c/5
D.
9c/10
查看完整题目与答案
【单选题】Why are the names of singers such as "Paul McCartney, John Lennon and Bob Dylan" mentioned in
A.
To show that stars performing in English are more likely to become popular.
B.
To show the influence of English pop singers on world culture.
C.
To show that English is the international language of pop songs.
D.
To show that popular culture also plays a part in the spread of English.
查看完整题目与答案
【单选题】一宇航员要到离地球5光年的星球去旅行，现宇航员希望将这路程缩短为3光年，则他所乘火箭相对于地球速度是：
A.
c/2
B.
3c/5
C.
4c/5
D.
9c/10
查看完整题目与答案
【单选题】What was she doing?
A.
She was working on a plane.
B.
She was working on a bus.
C.
She was taking a bus trip.
D.
She was making egg-salad sandwiches.
查看完整题目与答案
相关题目：
【单选题】Paul is performing a research study in which he is looking at the presentation of gender in children’s picture books. His unit of analysis is the book, so what is he studying?
A.
individuals
B.
groups
C.
social interactions
D.
organizations
E.
social artifacts
查看完整题目与答案
【简答题】Still seeking a destination for your long summer holidays? There is a good place which may be your favorite option. Arts of Hope is an overnight performing arts summer camp in Saint Paul, Minnesota, t...
查看完整题目与答案
【单选题】一宇航员要到离地球 5 光年的星球去旅行,现宇航员希望将这路程缩短为 3 光年,则他所乘火箭相对于地球速度是( )。
A.
0.5c
B.
0.6c
C.
0.8c
D.
0.9c
查看完整题目与答案
【多选题】在《小企业会计准则》 下,不能资本化的借款费用有( )
A.
生产经营期间不属于为购建固定资产的专门借款所发生的借款费用
B.
投资而发生的借款费用
C.
固定资产达到预定可使用状态之前发生的借款费用
D.
固定资产达到预定可使用状态之后发生的借款费用
查看完整题目与答案
【单选题】为了延长茎秆在逐稿器上的停留时间，提高分离效果，可以()。
A.
在逐稿器上方加档帘
B.
降低逐稿器转速
C.
增大逐稿器倾角
查看完整题目与答案
【单选题】为了延长茎秆在逐稿器上的停留时间,提高分离效果,可以( )。
A.
在逐稿器上方加档帘
B.
降低逐稿器转速
C.
增大逐稿器倾角
D.
提高逐稿器转速
查看完整题目与答案
【单选题】一宇航员要到离地球5光年的星球去旅行,现宇航员希望将这路程缩短为3光年,则他所乘飞船相对于地球速度是:
A.
c/2
B.
3c/5
C.
4c/5
D.
9c/10
查看完整题目与答案
【单选题】Why are the names of singers such as "Paul McCartney, John Lennon and Bob Dylan" mentioned in
A.
To show that stars performing in English are more likely to become popular.
B.
To show the influence of English pop singers on world culture.
C.
To show that English is the international language of pop songs.
D.
To show that popular culture also plays a part in the spread of English.
查看完整题目与答案
【单选题】一宇航员要到离地球5光年的星球去旅行，现宇航员希望将这路程缩短为3光年，则他所乘火箭相对于地球速度是：
A.
c/2
B.
3c/5
C.
4c/5
D.
9c/10
查看完整题目与答案
【单选题】What was she doing?
A.
She was working on a plane.
B.
She was working on a bus.
C.
She was taking a bus trip.
D.
She was making egg-salad sandwiches.
查看完整题目与答案
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