皮皮学，免费搜题
登录
搜题
【多选题】
泡泡纱按形成的原理有哪两种?
A.
纺纱泡泡纱
B.
织造泡泡纱
C.
碱泡泡纱
D.
酸泡泡纱
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
.
..
皮皮学刷刷变学霸
举一反三
【单选题】已知向量a=(1,m),b=(3,-2),且(a+b)⊥b,则m=( )
A.
-8
B.
-6
C.
6
D.
8
查看完整题目与答案
【单选题】The writing of the Constitution of the United States is an act of such genius that philosophers still wonder at its accomplishment and envy its results. Fifty-five typical American citizens met and ar...
A.
The Constitution, one of the greatest documents of the world, was written by fifty-five men of varying talents and backgrounds.
B.
The Constitution owes its greatness to the fact that it has never changed in a changing world
C.
The Constitution was written by many people working together cooperatively.
D.
The Constitution was written by many people, all of whom were thinkers of the highest order.
查看完整题目与答案
【单选题】The writing of the Constitution of the United States is an act of such genius that philosophers still wonder at its accomplishment and envy its results. Fifty-five typical American citizens met and ar...
A.
The Constitution, one of the great documents of the world, was written by fifty- five men of varying talents and backgrounds.
B.
The Constitution owes its greatness to the fact that it has never changed in a changing world.
C.
The Constitution was written by many people working together cooperatively.
D.
The Constitution was written by many people, all of whom were thinkers of the highest order.
查看完整题目与答案
【简答题】已知向量 =（2m+1，3）， =（2，m），且 ∥ ，则实数m的值是（    ）。
查看完整题目与答案
【简答题】已知向量 = (6 , 2 ) , = ( - 3 , k ) , 且 ∥ , 则 k = ________. 2.已知向量 = (2 , 1 ) , = (3 , m ) , 且 3 = 2 , 则实数 m = ________.
查看完整题目与答案
【简答题】根据以下资料，回答下列各题。 Does the Internet Make You Dumber? [A] The Roman philosopher Seneca may have put it best 2,000 years ago: 'To be everywhere is to be nowhere.' Today, the Internet grants us easy access ...
查看完整题目与答案
【单选题】已知向量 m ， n 的夹角为 π 6 ，且| m |= 3 ，| n |= 2 ，则| m - n |=（　　）
A.
4
B.
3
C.
2
D.
1
查看完整题目与答案
【单选题】已知向量 =（m-2，m+3）， =（2m+1，m-2），且这两个向量的夹角大于90°，则实数m的取值范围为 [     ]
A.
m＞2或m＜-
B.
- ＜m＜2
C.
m≠2
D.
m≠2且m≠-
查看完整题目与答案
【单选题】Questions 16 to 18 are based on the passage you have just heard.
A.
He obtained his philosophy degree.
B.
He sold his own life on the Internet.
C.
He became famous for his website.
D.
He requested to part with his girltriend.
查看完整题目与答案
【单选题】The writing of the Constitution of the United States is an act of such genius that philosophers still wonder at its accomplishment and envy its results. Fifty-five typical American citizens met and ar...
A.
The Constitution, one of the greatest documents of the world, was written by fifty-five men of varying talents and backgrounds.
B.
The Constitution owes its greatness to the fact that it has never changed in a changing world.
C.
The Constitution was written by many people working together cooperatively.
D.
The Constitution was written by many people, all of whom were thinkers of the highest order.
查看完整题目与答案
相关题目：
【单选题】已知向量a=(1,m),b=(3,-2),且(a+b)⊥b,则m=( )
A.
-8
B.
-6
C.
6
D.
8
查看完整题目与答案
【单选题】The writing of the Constitution of the United States is an act of such genius that philosophers still wonder at its accomplishment and envy its results. Fifty-five typical American citizens met and ar...
A.
The Constitution, one of the greatest documents of the world, was written by fifty-five men of varying talents and backgrounds.
B.
The Constitution owes its greatness to the fact that it has never changed in a changing world
C.
The Constitution was written by many people working together cooperatively.
D.
The Constitution was written by many people, all of whom were thinkers of the highest order.
查看完整题目与答案
【单选题】The writing of the Constitution of the United States is an act of such genius that philosophers still wonder at its accomplishment and envy its results. Fifty-five typical American citizens met and ar...
A.
The Constitution, one of the great documents of the world, was written by fifty- five men of varying talents and backgrounds.
B.
The Constitution owes its greatness to the fact that it has never changed in a changing world.
C.
The Constitution was written by many people working together cooperatively.
D.
The Constitution was written by many people, all of whom were thinkers of the highest order.
查看完整题目与答案
【简答题】已知向量 =（2m+1，3）， =（2，m），且 ∥ ，则实数m的值是（    ）。
查看完整题目与答案
【简答题】已知向量 = (6 , 2 ) , = ( - 3 , k ) , 且 ∥ , 则 k = ________. 2.已知向量 = (2 , 1 ) , = (3 , m ) , 且 3 = 2 , 则实数 m = ________.
查看完整题目与答案
【简答题】根据以下资料，回答下列各题。 Does the Internet Make You Dumber? [A] The Roman philosopher Seneca may have put it best 2,000 years ago: 'To be everywhere is to be nowhere.' Today, the Internet grants us easy access ...
查看完整题目与答案
【单选题】已知向量 m ， n 的夹角为 π 6 ，且| m |= 3 ，| n |= 2 ，则| m - n |=（　　）
A.
4
B.
3
C.
2
D.
1
查看完整题目与答案
【单选题】已知向量 =（m-2，m+3）， =（2m+1，m-2），且这两个向量的夹角大于90°，则实数m的取值范围为 [     ]
A.
m＞2或m＜-
B.
- ＜m＜2
C.
m≠2
D.
m≠2且m≠-
查看完整题目与答案
【单选题】Questions 16 to 18 are based on the passage you have just heard.
A.
He obtained his philosophy degree.
B.
He sold his own life on the Internet.
C.
He became famous for his website.
D.
He requested to part with his girltriend.
查看完整题目与答案
【单选题】The writing of the Constitution of the United States is an act of such genius that philosophers still wonder at its accomplishment and envy its results. Fifty-five typical American citizens met and ar...
A.
The Constitution, one of the greatest documents of the world, was written by fifty-five men of varying talents and backgrounds.
B.
The Constitution owes its greatness to the fact that it has never changed in a changing world.
C.
The Constitution was written by many people working together cooperatively.
D.
The Constitution was written by many people, all of whom were thinkers of the highest order.
查看完整题目与答案