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【单选题】
若行列式 ,则x=______.A.
2
B.
-2
C.
3
D.
-3
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反馈参考答案：
举一反三
【简答题】N型半导体是在半导体中掺杂了 价的 元素,其多子是
【单选题】Which of the following can be inferred from the passage?______
A.
To Hindus, marriage is important but not necessary
B.
Although family is important, no one expects young Indians to give up their own happiness for the benefit of the family
C.
Young Indians do not traditionally go on dates with their future spouses
D.
Although many marriages are still arranged, most young people nowadays choose their marriage partner on the basis of love
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