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【判断题】
基本实现社会主义现代化在民生和社会建设方面的体现是,社会文明程度达到新的高度,国家文化软实力显著增强,中华文化影响更加广泛深入。A.
正确
B.
错误
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举一反三
【多选题】Suppose V is the positive quadrant in xy -plane defined as If two vectors u and v are in V , λ is any scalar. we can say that
A.
Vector w (w= u+ v) is definitely in V.
B.
Vector w (w= λ v) is definitely in V.
C.
V is a vector space.
D.
V is not a vector space.
【单选题】If any vector in the set can be represented by and , then must be linearly dependent.
A.
m>n
B.
m≥n
C.
m〈n
D.
m≤n
【简答题】.根据下面一组等式 S 1 =1 S 2 =2+3=5 S 3 =4+5+6=15 S 4 =7+8+9+10=34 S 5 =11+12+13+14+15=65 S 6 =16+17+18+19+20+21=111 S 7 =22+23+24+25+26+27+28=175 … … … … … … … … 可得 .
【单选题】Let V be the set of points inside and on the unit circle in xy -plane defined by If vectors u & v are in V, and λ is any scalar, we can say that
A.
Vector w (w=u+v) is definitely in V.
B.
Vector w (w=λu) is definitely in V.
C.
V is a vector space.
D.
V is not a vector space.
【多选题】Let V denote the union of the first and third quadrants in the xy -plane. , If vectors u & v are in V, and λ is any scalar, we can say that
A.
Vector w (w=u+v) is definitely in V.
B.
Vector w (w=λ v) is definitely in V.
C.
V is a vector space.
D.
V is not a vector space.
【单选题】¿Cuál de las siguientes opciones NO es palabra clave para el término “fiesta”?
A.
a. Regocijo
B.
b. No se trabaja
C.
c. Arte
D.
【简答题】预习任务
【判断题】Let V denote the union of the first and third quadrants in the xy -plane. , If u is in V and λ is any scalar, we can say that V is a vector space .
A.
正确
B.
错误
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