滨江市平均每天产生垃圾700吨,由甲、乙两个垃圾处理厂处理,甲厂每小时处理垃圾5

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问题:

滨江市平均每天产生垃圾700吨,由甲、乙两个垃圾处理厂处理,甲厂每小时处理垃圾55吨,需费用550元,乙厂每小时处理垃圾45吨,需费用495元,

(1)甲、乙两厂同时处理,每天需几小时完成工作?

(2)若规定每天处理垃圾的费用不超过7370元,甲厂每天处理垃圾至少需要多少小时?

考点:一元一次不等式的应用一元一次方程的应用
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阅读下面短文,根据以下提示:1)汉语提示;2)首字母提示;3)语境提示,在每个空内填入一个适当的英语单词,并将该词完整地写在右边相对应的横线上。所填单词意义准确,拼写正确。

As we all know, "Failure is the mother of success."     小题1:  I just want to say “Success is the baby of confidence." First of all, confidence makes us happier in our life. Life is   小题2:  a bright and colorful 小题3:  (油画). If confidence is with us, we will find   小题4:  life really becomes richer and more interesting. Then, confidence makes us braver. If we  小题5:  (缺乏)confidence in ourselves, how can we overcome    小题6:  (困难)we meet with?If we have no confidence in     小题7:   , how can we succeed in小题8:   ourselves in the future? Without confidence, nothing can be g  小题9:   . That is to say, if you want to win, you have to believein yourself. F  小题10:  , I would like to use the following words asour encouragement: “If you think you can, you can."

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看谁算得又快又对。                                                      
4×3= 4×4= 35+20=
6×4=5×6= 9+36=
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女,35岁,多食、多汗、消瘦、心悸半年,查体:突眼,心率增快。该患者颈部检查最可能出现的体征是()。

A.甲状腺肿大,质地柔软,触诊有震颤,听诊闻及"嗡鸣"样血管杂音

B.甲状腺结节性肿大,无震颤和杂音

C.甲状腺肿大有结节感,不规则、质地硬

D.颈静脉怒张

E.Oliver征

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“社会引导社会成员用社会认可的方法去活动”是指()

A.社会学习

B.社会化

C.观察学习

D.自主学习

E.规范学习

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近年来,建筑装饰材料进入家庭,调查发现有些装饰程度较高的居室中,由装饰材料缓慢释放出来的化学污染物浓度过高,影响健康,这些污染物是(  w.&  )

A.二氧化碳

B.氢气

C.甲醛、苯等有机物

D.氮气

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