皮皮学,免费搜题
登录
搜题
【单选题】
紅山 桜 は赤がとりわけ濃い桜です。
A.
いん
B.
さくら
C.
ざくら
D.
おんな
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】设L是从点A(-1,-1)沿曲线x 2 +xy+y 2 =3经点E(1,-2)到点B(1,1)曲线段,则曲线积分
A.
0
B.
C.
D.
4
【判断题】L是从点A(3,3)到点B(1,2) =4。
A.
正确
B.
错误
【单选题】When seeking to appoint new members to a corporation's board, the chairs traditionally looked for candidates who
A.
had legal and governmental experience.
B.
had experience dealing with community affairs.
C.
could work easily with other members of the board.
D.
were already involved in establishing policy for that corporation.
【判断题】L是从点A(3,2/3)到点B(1,2) =4。
A.
正确
B.
错误
【单选题】It can be inferred from the passage that, when seeking to appoint new members to a corporation's board, the chair traditionally looked for candidates who______.
A.
had experience dealing with community affairs
B.
could work easily with other members of the board
C.
were already involved in establishing policy for that corporation
D.
had influential connections outside the business world
【单选题】绳索、胶带、链条等构成的约束是( )。
A.
柔索约束
B.
光滑接触面约束
C.
圆柱铰链约束
D.
活动铰约束
【单选题】目前,b型流感嗜血杆菌菌苗主要成分为
A.
荚膜多糖菌苗
B.
荚膜多糖-载体蛋白菌苗
C.
荚膜多糖-变异型白喉类毒素结合菌苗
D.
荚膜寡糖-变异型白喉类毒素结合菌苗
E.
荚膜寡糖菌苗
【判断题】某发光二极管,两引脚一个长,一个短,则长引脚对应发光管的阴极。
A.
正确
B.
错误
【单选题】溢价发行债券时,市场利率()。
A.
低于债券的票面利率
B.
高于债券的票面利率
C.
等于债券的票面利率
D.
不确定
【简答题】证明A=(2xy+3)i+(x 2 -4z)j-4yk为保守场,并计算曲线积分 其中l是从点A(3,-1,2)到点B(2,1,-1)的任意路径.
相关题目: