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【简答题】
已知方程：x 2 + x+1=0的解是x= 方程x 2 + x+1=0的解是x= 方程x 2 + x+1=0的解是x= … 请你猜想方程 x 2 + x+1=0的解是 _________ ．
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】How much sleep does a person need (31) the physiological bases of the need for sleep remain conjectural (猜想), rendering conclusive answers to this question impossible, much evidence has been gathered...
A.
unless
B.
however
C.
although
D.
even if
【单选题】How much sleep does a person need?【B1】the physiological bases of the need for sleep remain conjectural(猜想), rendering conclusive answers to this question impossible, much evidence has been gathered on...
A.
As
B.
Despite
C.
While
D.
Whether
【单选题】How much sleep does a person need (31) the physiological bases of the need for sleep remain conjectural (猜想), rendering conclusive answers to this question impossible, much evidence has been gathered...
A.
extend
B.
range
C.
alter
D.
rise
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【单选题】分式方程1x-3+1x+3=4x2-9的解是（ ）
A.
x=±2
B.
x=2
C.
x=-2
D.
无解
【单选题】当1，2，3，4，5，6时，比较和的大小并猜想（）
A.
时，
时，B.
时，
时，C.
时，
时，D.
时，
时，【判断题】孪生素数猜想已经被证明出来了。()
A.
正确
B.
错误
【单选题】孪生素数猜想是谁提出的
A.
伽罗瓦
B.
笛卡尔
C.
欧几里得
D.
阿基米德
【单选题】已 知 且 ,计算 ,猜想 等于( )
A.
B.
C.
D.
