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| I live in Albuquerque, New Mexico. I used to give a lot of money to the homeless,feeling 1 for them. But as time passed, I became a mom with no home, a huge 2 , and hardly any income. As a result, I 3 giving money to the people on the side of the road and became very 4 . Things started to change for me 5 . I had a home, a backyard for my daughter,and plenty of food, and I started to 6 myself out of debt. One day we saw a homeless person with the 7 , "Will work for food." I 8 . My daughter commented. "Mommy, you used to always give money to those people in 9 ." I replied, "Honey, they just use that money for 10 , or other bad things." She didn't respond. 11 when I said that, I didn't feel right. Three days later, I was driving to 12 my daughter from school. A man was standing on the corner, and something deep 13 me said,"Just help the guy." So I 14 down my window, and he ran over excitedly. He said,"God bless you, I only need 77 cents." I 15 into my ashtray (烟灰缸) and strangely enough, there 16 three quarters and two pennies. I picked them up and gave them to him. He 17 with joy and tears in his eyes."Wow, you just made it 18 for me to see my mom for Christmas! Thank you so much; the 19 that had this great sale is leaving in 20 minutes!" It was a moment I'll 20 forever. I think that man won't forget it either, but I was the one who got the best gift in life-GIVING. | ||||
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开放性气胸的病理生理改变，下述哪项是错误的（）
A.伤侧肺萎陷
B.伤侧负压消失
C.肺内部分气体对流
D.纵隔扑动
E.伤侧有反常呼吸
环境污染是指（）。
A.环境中的污染物的数量或浓度超过了环境的自净能力
B.环境中的污染物造成了环境质量的恶化
C.环境中的污染物影响了人体健康
D.A+C
E.A+B+C
以下革命中以城市为中心爆发的是（）。
A.俄国十月革命
B.巴黎公社革命
C.辛亥革命
D.以上都是
Serialization delay and (1) delay are the two components of network delay that are improved by increasing bandwidth. Serialization delay, i.e. the amount of time it takes to put the (2) on the wire, and queuing delay (depth of the queue) are improved by increasing the (3) from a 128Kbps circuit to a T1. However, three other components of delay, routing/switching delay, distance delay, and protocol delay are components that can not be positively affected by an (4) in bandwidth. If the circuits are not over-utilized, then increasing the bandwidth to improve the (5) of the application will only result in an increased bandwidth with no positive effects on performance.
（3）是（）
A.memory
B.cache
C.bandwidth
D.delay