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The secret of staying slim could be as simple as keeping your mind on your meals. Research suggests that 1 ourselves from distractions and concentrating completely on the food that is in front of us, helps us stay in 2 . Such ‘mindful eating’ ensures that the 3 is in tune with (协调) the body, enabling it to ‘hear’ the chemical 4 that tell it that we are full。 Digestion 5 a complex series of signals between the gut (肠道)and the nervous system and it takes about 20 minutes for the brain to tell that the body has eaten enough. This means that if someone eats too 6 , the signals will come slowly, leading to 7 . Scientists say that distractions make it 8 for us to remember what we have eaten. This absent-mindedness stops us from feeling 9 – and sends us reaching for some snacks later on. It is thought that our memory of what we have eaten plays a key role in 10 appetite. This means that distractions stop us from remembering the detail of what we have eaten – leaving us feeling 11 . Advocates of mindful eating 12 chewing food slowly and taking note of its color, smell and flavor. Before 13 dieters should ask themselves if they are really hungry---and if not, distract themselves by going for a walk or reading. Done 14 , mindful eating may not only leave you 15 , but also make you enjoy mealtimes. 小题1: A.feeling B.protecting C.freeing D.saving 小题2: A.shape B.health C.touch D.business 小题3: A.appetite B.speed C.emotion D.mind 小题4: A.orders B.sounds C.desires D.messages 小题5: A.discovers B.involves C.sends D.holds 小题6: A.quickly B.slowly C.gradually D.suddenly 小题7: A.imbalance B.damage C.overeating D.failure 小题8: A.clearer B.easier C.sharper D.harder 小题9: A.full B.great C.comfortable D.delicious 小题10: A.building B.losing C.controlling D.improving 小题11: A.upset B.eager C.hungry D.desperate 小题12: A.mind B.advise C.avoid D.consider 小题13: A.snacking B.running C.writing D.cooking 小题14: A.quietly B.strongly C.properly D.poorly 小题15: A.slim B.fat C.strong D.calm
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【简答题】若单脉冲信号f 0 (t)的频谱为F 0 (Jω)=EτSa ;且有如下三脉冲信号f(t)=f 0 (t)+f 0 (t+T)+f 0 (t-T)。求其频谱
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A.
正确
B.
错误
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A.
正确
B.
错误
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A.
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B.
②⑤①③⑥④
C.
⑤③②⑥①④
D.
⑤①④⑥③②
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A.
正确
B.
错误
【单选题】信号f(t)与δ(t)的卷积等于()。
A.
f(t)
B.
δ(t)
C.
f(t)δ(t)
D.
0
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A.
结点法
B.
截面法
C.
静定法
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A.
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B.
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C.
经纪人为一座旧房屋买卖收取的佣金
D.
保险公司收到的一笔家庭财产保险
【多选题】下列统计指标中,是质量指标的有( )
A.
粮食总产量
B.
单位产品成本
C.
出勤人数
D.
人口密度
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