题目内容

The lamp suddenly went out, leaving us in total ____(dark).

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She applied to her____ (employ) for a pay rise, but she was refused.

The company has ____(broad) its product range in the US.

设二维随机变量（X,Y）的分布律为
则P{X+Y=3}=
A 0.1 B 0.2 C 0.3 D 0.4

（用适当的形式填写词汇）The garden was full of ____(color) and unusual flowers.