5位机中，x= -1011，则 [x]补=（），[x]补右移一位得到的[ x /2]补=（），[x]补左移一位得到的[ 2x]补=（）。
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Over time, my remaining hearing dropped to 20 percent, where it is today.(Para. 1)
A. Gradually I lost more of my hearing until I was 80 percent deaf, as I currently remain.
B. Soon I lost 20 percent of my hearing after I moved to where I'm living today.
I'm big on talking to the parents.(Para. 8)
A. I feel very proud when I am talking to the parents.
B. I love and really enjoy talking to the parents.
自信的人的特征：
A. 认可或肯定自己的长处
B. 认可他人的长处
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