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【简答题】
On a cold November afternoon, my mother and I were walking back home from a pizza store. We had bought many things. We were dressed 26 , and I was feeling a little 27 as I was carrying our shopping, so I decided to throw something away. I was walking towards a dustbin(垃圾箱) 28 I noticed a poor man walking out of the restaurant in front of us. He headed over to the nearby dustbin and started looking through it. I suddenly felt very 29 because I was about to throw away a new drink just because it was too heavy. I walked up to him and handed the 30 and some bread over to him. The man looked up 31 and took what I gave him. A huge smile 32 on his face. I felt I couldn’t be happier with 33 . But then he said, “Wow, this is my son’s lucky day!” With that, he thanked me happily and started off on his bike. I 34 heard him singing as he rode away. I got a warm 35 inside. I now understand what it 36 by the saying “Giving is getting”. 37 it was only a little action, I got and learned more in those two minutes than I did in the rest of the month. Everyone in the world 38 help. Everyone can give help and everyone will be helped by showing kindness. The scene of that man’s happiness caused by my small gift appears in my mind 39 I have the chance to do something nice. This is the power(力量)of 40 . 小题1: A.poorly B.simply C.warmly D.expensively 小题2: A.worried B.interested C.surprised D.tired 小题3: A.and B.but C.so D.when 小题4: A.nervous B.happy C.sorry D.proud 小题5: A.money B.toys C.drink D.clothes 小题6: A.in silence B.in surprise C.in anger D.in fear 小题7: A.turned B.appeared C.went D.ran 小题8: A.myself B.ourselves C.yourself D.himself 小题9: A.still B.once C.even D.ever 小题10: A.idea B.welcome C.word D.feeling 小题11: A.aims B.means C.looks D.offers 小题12: A.If B.Though C.Because D.While 小题13: A.needs B.gives C.takes D.brings 小题14: A.whichever B.however C.whatever D.whenever 小题15: A.charity B.friendship C.support D.feeling
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【单选题】若离心泵入口真空表读数为 700mmHg,当地大气压为101.33kPa,则输送上42°C水时(饱和蒸汽压为8.2kPa)泵内 发生汽蚀现象。
A.
B.
不能
C.
不确定
【单选题】若离心泵入口处真空表读数为 700mmHg ,当地大气压力为 101.33kPa ,则输送 42 °C 水(其饱和蒸汽压为 8.2 kPa )时,泵内 发生气蚀现象。
A.
一定会
B.
一定不会
C.
可能会
D.
无法判断
【简答题】若离心泵入口处真空表读数为700mmHg。当地大气压为101.33kPa。则输送42℃水时(饱和蒸汽压为8.2kPa)泵内( )发生汽蚀现象。(会、不会)
【简答题】若离心泵入口真空表读数为700mmHg,当地大气压强为101.33kPa,则输送42°C水时(饱和蒸气压为8.2kPa),泵内将( )发生气蚀现象。(填“会”或“不会”)
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A.
正确
B.
错误
【多选题】关于 STP, 下列描述正确的是?
A.
根桥不可能发送 TCN BPDU
B.
非根桥不可能发送 TC 标志置 1 的 Configuration BPDU
C.
STP 协议帧是单播帧
D.
STP 协议帧是组播帧
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A.
公路运输
B.
铁路运输
C.
航空运输
D.
管道运输
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A.
预备费
B.
无形资产
C.
有形资产
D.
铺底流动资金
【单选题】下面描述错误的是
A.
周期偶信号傅里叶三角函数展开式中 。
B.
周期奇信号傅里叶三角函数展开式中 。
C.
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D.
周期偶谐信号傅里叶三角函数展开式中只含有偶次谐波
E.
所有周期信号都可利用傅里叶级数进行展开
【判断题】工程项目总投资一般是指某项工程从投产开始到全部竣工投产为止所发生的全部资金投入。
A.
正确
B.
错误
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