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Love is important because without it life has no meaning or purpose.Love allows us to do more than we could ever __11__ without its power.So often we take good care of our __12__needs.We make sure our bodies are fed,cleaned,clothed,exercised and rested.However,we tend to __13 _ the most important need--love.Of course,as a society,love is not overlooked.Popular media constantly places great emphasis __14__ what we need to do to attract “love”__15__ being loved is rot as powerful an emotional need as that desire to love someone else. The meed to love and __16__ others is built into us biologically.This need is what allows parents to give up sleep and food while __17__ their children.This need is what allows people to put themselves at risk to save others from natural __18 __or threats. Love means to cherish,hold dear,and treasure. We do not hurt,harm,or cause __19__ to those we love; rather,we seek to __20__ their suffering.It’s not about wanting to possess or control others; it&39;s about wanting to set them free.Love is the power __21__ allows the wheel of life to continue turning, for when we love we look _22_.our own need sand desires. We __23__ our time,our energy,our wishes,and sometimes even ourselves because of love.It is love that allows emergency services personnel to face danger.It is love that allows soldiers to __24__ everything,The ultimate definition of love is not about feeling good but __25__ about doing good. 11________ A.accomplish B.admit C.attribute D.avoid 12A.psychological B.emotional C.physical D.mental 13A.overlook B.overcome C.overtake D.overcharge 14A.at B.to C.of D.on 15A.So B.But C.Nor D.Or 16A.call for B.care for C.look for D.wait for 17A.bringing B.growing C.growing D.growing 18A.accidents B.incidents C.disasters D.events 19A.pain B.joy C.damage D.pleasure 20A.increase B.lessen C.relax D.strengthen 21A.that B.what C.who D.while 22A.before B.beyond C.above D.over 23A.decrease B.forbid C.resist D.sacrifice 24A.endanger B.refuse C.risk D.decline 25A.instead B.then C.rather D.for
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【简答题】加权算术平均数指数是以综合指数的 作权数,通常用来编制 指标总指数;加权调和平均数指数是以综合指数的 作权数,通常用来编制 指标总指数。
【判断题】用石灰—纯碱沉淀软化法既能降低水中的碳酸盐硬度,也可以降低非碳酸盐硬度。
A.
正确
B.
错误
【单选题】以个体指数与报告期销售额计算的价格指数是(    )。
A.
平均指标指数
B.
综合指数
C.
加权算术平均数指数
D.
加权调和平均数指数
【多选题】石灰和纯碱软化法能( )。
A.
去除碳酸盐硬度
B.
去除非碳酸盐硬度
C.
去除碱度
D.
降低碱度
【单选题】能够使硬水得到软化方法是(  )
A.
加活性炭吸附
B.
过滤
C.
煮沸
D.
加入澄清石灰水
【判断题】石灰-纯碱沉淀软化法既能降低水中的碳酸盐硬度,也可以降低非碳酸盐硬度。
A.
正确
B.
错误
【单选题】用石灰纯碱法软化硬水时,加入石灰的作用是(  )
A.
只能降低水中的永久硬度
B.
能同时降低水中的永久硬度和暂时硬度
C.
可把部分Ca 2+ 所形成的硬度转变为Mg2+形成的硬度
D.
可把部分Mg 2+ 所形成的硬度转变为Ca2+形成的硬度
【单选题】石灰软化时的特点的相关叙述不正确的是( )。
A.
处理费用低,货源充足
B.
石灰软化后,水中阴阳离子和总含盐量均有所降低。
C.
石灰软化只能使CaCO3和MgCO3生成Mg(OH)2沉淀,所以只能去除CaCO3和MgCO3构成的硬度
D.
石灰软化后的沉淀物不能全部去除,由此构成的剩余硬度较离子交换法高
【简答题】加权算术平均数指数是以综合指数的___________作权数,通常用来编制_________指标总指数;加权调和平均数是以综合指数的____________作权数,通常用来编制_________指标总指数。
【单选题】加权算术平均数指数,要成为综合指数的变形,其权数( )
A.
必须是 Q1p1
B.
必须是 Q0p0
C.
必须是 q0p1
D.
以上都可用
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