下列哪个属性是设置字体为加粗()

某等差数列的第2项为－5，第6项与第4项的差为6，则这个数列的首项为()

A、-11
B、-10
C、-8
D、-7

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In his post on the Messenger, Edgar Allan Poe showed his true talents as______ 点击查看答案