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【判断题】
平面一般力系如果则该力系在任意选取的投影轴上投影的代数和必为零。
A.
正确
B.
错误
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举一反三
【单选题】企业最基本的会计等式是
A.
资产=负债+所有者权益
B.
收入-费用=利润
C.
资产=负债+所有者权益+（收入-费用）
D.
资产=负债+（所有者权益+利润）
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【判断题】风险分析可以选择定性分析或定量分析方法,进一步确定已识别风险对企业的影响,并根据其影响对风险进行排序,确定关键风险项,并指导风险应对计划的制定。
A.
正确
B.
错误
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【判断题】设有向图G中有向边的集合E={,,,,},则该图的一种拓扑序列为(1,4,3,2)。
A.
正确
B.
错误
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【多选题】多选2 Hooray! It's snowing! It's time to make a snowman.James runs out. He makes a big pile of snow. He puts a big snowball on top. He adds a scarf and a hat. He adds an orange for the nose. He adds coa...
A.
1.Hooray! It's snowing! It's time to make a snowman.James runs out. He makes a big pile of snow. He puts a big snowball on top. He adds a scarf and a hat. He adds an orange for the nose. He adds coal for the eyes and buttons.In the evening, James opens the door. What does he see? The snowman is moving! James invites him in. The snowman has never been inside a house. He says hello to the cat. He plays with paper towels.A moment later, the snowman takes James's hand and goes out.They go up, up, up into the air! They are flying! What a wonderful night!The next morning, James jumps out of bed. He runs to the door.He wants to thank the snowman. But he's gone
B.
2
C.
3
D.
4
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【单选题】He is really a big fan of jigsaws (拼图). The one he worked out last night _______ him several hours. [     ]
A.
took
B.
spent
C.
paid
D.
cost
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【判断题】设【图片】、【图片】和【图片】分别为向量【图片】关于【图片】轴、【图片】轴和【图片】轴的方向角，则向量【图片】的方向角为【图片】、【图片】和【图片】.
A.
正确
B.
错误
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【单选题】设有向无环图G中的有向边集合E={,,,},则下列属于该有向图G的一种拓扑排序序列的是()
A.
1,2,3,4
B.
2,3,4,1
C.
1,4,2,3
D.
1,2,4,3
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【单选题】单片机89C51的XTAL1和XTAL2引脚是:
A.
外接定时器
B.
外接串行口
C.
外接中断
D.
外接晶振
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【单选题】He ________ in a small workshop, but now he is the boss of a big company.
A.
used to work
B.
was used to work
C.
used to working
D.
was used to working
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【单选题】________ , he is the CEO of a big company in our city .
A.
As he is a young fellow
B.
As a young fellow he is
C.
Young fellow as he is
D.
Young fellow as is he
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相关题目：
【单选题】企业最基本的会计等式是
A.
资产=负债+所有者权益
B.
收入-费用=利润
C.
资产=负债+所有者权益+（收入-费用）
D.
资产=负债+（所有者权益+利润）
查看完整题目与答案
【判断题】风险分析可以选择定性分析或定量分析方法,进一步确定已识别风险对企业的影响,并根据其影响对风险进行排序,确定关键风险项,并指导风险应对计划的制定。
A.
正确
B.
错误
查看完整题目与答案
【判断题】设有向图G中有向边的集合E={,,,,},则该图的一种拓扑序列为(1,4,3,2)。
A.
正确
B.
错误
查看完整题目与答案
【多选题】多选2 Hooray! It's snowing! It's time to make a snowman.James runs out. He makes a big pile of snow. He puts a big snowball on top. He adds a scarf and a hat. He adds an orange for the nose. He adds coa...
A.
1.Hooray! It's snowing! It's time to make a snowman.James runs out. He makes a big pile of snow. He puts a big snowball on top. He adds a scarf and a hat. He adds an orange for the nose. He adds coal for the eyes and buttons.In the evening, James opens the door. What does he see? The snowman is moving! James invites him in. The snowman has never been inside a house. He says hello to the cat. He plays with paper towels.A moment later, the snowman takes James's hand and goes out.They go up, up, up into the air! They are flying! What a wonderful night!The next morning, James jumps out of bed. He runs to the door.He wants to thank the snowman. But he's gone
B.
2
C.
3
D.
4
查看完整题目与答案
【单选题】He is really a big fan of jigsaws (拼图). The one he worked out last night _______ him several hours. [     ]
A.
took
B.
spent
C.
paid
D.
cost
查看完整题目与答案
【判断题】设【图片】、【图片】和【图片】分别为向量【图片】关于【图片】轴、【图片】轴和【图片】轴的方向角，则向量【图片】的方向角为【图片】、【图片】和【图片】.
A.
正确
B.
错误
查看完整题目与答案
【单选题】设有向无环图G中的有向边集合E={,,,},则下列属于该有向图G的一种拓扑排序序列的是()
A.
1,2,3,4
B.
2,3,4,1
C.
1,4,2,3
D.
1,2,4,3
查看完整题目与答案
【单选题】单片机89C51的XTAL1和XTAL2引脚是:
A.
外接定时器
B.
外接串行口
C.
外接中断
D.
外接晶振
查看完整题目与答案
【单选题】He ________ in a small workshop, but now he is the boss of a big company.
A.
used to work
B.
was used to work
C.
used to working
D.
was used to working
查看完整题目与答案
【单选题】________ , he is the CEO of a big company in our city .
A.
As he is a young fellow
B.
As a young fellow he is
C.
Young fellow as he is
D.
Young fellow as is he
查看完整题目与答案