皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【单选题】
零输入响应是指
A.
没有输入信号时的响应
B.
静态响应
C.
电容初识电压为零时的响应
D.
只有元件初始引起的响应
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【单选题】设向量 a , b , c 为三个任意向量,则( a + b )× c = (         )
A.
a × c + c × b
B.
a × c + b × c
C.
c × a + c × b
D.
c × a + b × c
【简答题】由空间向量基本定理可知,空间任意向量 p 可由三个不共面的向量 a , b , c 唯一确定地表示为 p =x a +y b +z c ,则称(x,y,z)为基底 < a , b , c > 下的广义坐标.特别地,当 < a , b , c > 为单位正交基底时,(x,y,z)为直角坐标.设 i , j , k 分别为直角坐标中x,y,z正方向上的单位向量,则空间直角坐标(1,2,3)在基底 < ...
【单选题】Natural flavorings and fragrances are often costly and limited in supply. For example, the vital ingredient in a rose fragrance is extracted from natural rose oil at a cost of thousands of dollars a p...
A.
natural flavorings and fragrances are not quite dear
B.
the limitation of natural flavorings and fragrances is clear
C.
the supply of natural flavorings and fragrances is adequate to meet the demand
D.
the cost of producing natural flavorings and fragrances is high
【单选题】设 为三个任意向量,则 ( ).
A.
;
B.
;
C.
;
D.
.
【单选题】无民事行为能力人是指
A.
不满十周岁的未成年人和不能辨认自己行为的精神病人
B.
不满十四周岁的未成年人和精神病人
C.
不能完全辨认自己行为的精神病人
D.
不满十周岁的未成年人和所有精神病人
【单选题】Natural flavorings and fragrances are often costly and limited in supply. For example, the vital ingredient in a rose fragrance is extracted from natural rose oil at a cost of thousands of dollars a p...
A.
natural flavorings and fragrances are not quite dear
B.
the limitation of natural flavorings and fragrances is clear
C.
the supply of natural flavorings and fragrances is adequate to meet the demand
D.
the cost of producing natural flavorings and fragrances is high
【简答题】Questions 16 to 20 are based on the following passage. The destruction of our natural resources and contamination of our food supply continue occur, largely because of the extreme difficulty in affixi...
【简答题】The Natural Approach suggests that grammar use should be limited to situations where it will not ______with communication.
【单选题】设 为任意三个向量,且 , 则( )
A.
且 ;
B.
且 ;
C.
且 ;
D.
且 .
【单选题】无民事行为能力人是指
A.
不满十周岁的未成年人和不能辨认自己行为的精神病人
B.
不满十四周岁的未成年人和精神病人
C.
不能完全辨认自己行为的精神病人
D.
不满十周岁的未成年人和年有精神病人
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题