题目内容
The floor of the attic needs__________ if we’re going to make it into a bedroom.(strong)
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He is_________of what he has done. (shame)
She expressed her_________ to me by inviting me to dinner. (grateful)
In ________, he showed great promise, but finally he turned out mediocre. (young)
IRB型机器人常用的型号有IRB 120、IRB 1400、IRB 2400、IRB 4400、IRB 6400。解释如下：左边第一位数：指机器人的（）；左边第二位数：指的是所属系统。
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