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【多选题】
远端胃大分部切除术后常用的消化道重建方式有哪些
A.
B- Ⅰ 式吻合
B.
B- Ⅱ 式吻合
C.
B- Ⅲ式吻合
D.
Roux-en-Y 吻合
E.
以上都是
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【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.
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【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
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【判断题】可持续发展是指满足我们当代人的需求，又不损害后代人满足其需求能力的发展途径。（）
A.
正确
B.
错误
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【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 .
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【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.
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【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.
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【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.
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【简答题】预习任务
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【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
查看完整题目与答案
【判断题】食品发酵反应条件温和，能耗少，设备简单。
A.
正确
B.
错误
查看完整题目与答案
相关题目：
【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.
查看完整题目与答案
【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
查看完整题目与答案
【判断题】可持续发展是指满足我们当代人的需求，又不损害后代人满足其需求能力的发展途径。（）
A.
正确
B.
错误
查看完整题目与答案
【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 .
查看完整题目与答案
【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.
查看完整题目与答案
【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.
查看完整题目与答案
【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.
查看完整题目与答案
【简答题】预习任务
查看完整题目与答案
【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
查看完整题目与答案
【判断题】食品发酵反应条件温和，能耗少，设备简单。
A.
正确
B.
错误
查看完整题目与答案