皮皮学,免费搜题
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【单选题】
细胞分泌的激素进入细胞间液,通过扩散作用于把细胞发生作用的传递方式叫做
A.
内分泌
B.
外分泌
C.
旁分泌
D.
自分泌
E.
神经内分泌
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举一反三
【单选题】______ he once felt like giving up, he now has the determination to push further and keep on going.
A.
Where
B.
As
C.
In case
D.
New that
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【简答题】已知| a |=1,| b |=2 , 向量 a 与向量 b 的方向相同,则 a · b =
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【单选题】The same factors push wages and prices up together, the one ______ the other.
A.
emphasizing
B.
reinforcing
C.
multiplying
D.
increasing
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【简答题】已知 a =(-2,2), b =(3,1) ,则与 a +2 b 同向的单位向量为______.
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【简答题】The same factors push wages and prices up together, the one ________ the other. A) emphasizing B) reinforcing C) multiplying D) increasing
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【单选题】已知向量a=(1,2,3),则与a方向相同的单位向量是( )
A.
( , , )
B.
(- ,- ,- )
C.
( , , )
D.
(- ,- ,- )
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【单选题】肉类原料的致嫩方法有一一
A.
碱
B.
碳酸钠
C.
氣氧化钠
D.
碳酸氢钠
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【简答题】已知a={-1,2,-2},则与a同向的单位向量是( )
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【简答题】句型转换。 l. There is a push-pin. It is holding up this piece of paper. (合并为一句) There is a push-pin_____ _____ this piece of paper. 2. He has a factory. It has a hundred machines. (合并为一句) He has a factory...
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【单选题】已知点A(1,-2),若向量 与向量a=(2,3)同向,且| |= ,则点B的坐标为( )
A.
(2,3)
B.
(-2,3)
C.
(3,1)
D.
(3,-1)
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相关题目:
【单选题】______ he once felt like giving up, he now has the determination to push further and keep on going.
A.
Where
B.
As
C.
In case
D.
New that
查看完整题目与答案
【简答题】已知| a |=1,| b |=2 , 向量 a 与向量 b 的方向相同,则 a · b =
查看完整题目与答案
【单选题】The same factors push wages and prices up together, the one ______ the other.
A.
emphasizing
B.
reinforcing
C.
multiplying
D.
increasing
查看完整题目与答案
【简答题】已知 a =(-2,2), b =(3,1) ,则与 a +2 b 同向的单位向量为______.
查看完整题目与答案
【简答题】The same factors push wages and prices up together, the one ________ the other. A) emphasizing B) reinforcing C) multiplying D) increasing
查看完整题目与答案
【单选题】已知向量a=(1,2,3),则与a方向相同的单位向量是( )
A.
( , , )
B.
(- ,- ,- )
C.
( , , )
D.
(- ,- ,- )
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【单选题】肉类原料的致嫩方法有一一
A.
碱
B.
碳酸钠
C.
氣氧化钠
D.
碳酸氢钠
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【简答题】已知a={-1,2,-2},则与a同向的单位向量是( )
查看完整题目与答案
【简答题】句型转换。 l. There is a push-pin. It is holding up this piece of paper. (合并为一句) There is a push-pin_____ _____ this piece of paper. 2. He has a factory. It has a hundred machines. (合并为一句) He has a factory...
查看完整题目与答案
【单选题】已知点A(1,-2),若向量 与向量a=(2,3)同向,且| |= ,则点B的坐标为( )
A.
(2,3)
B.
(-2,3)
C.
(3,1)
D.
(3,-1)
查看完整题目与答案