水被称为“生命之源”,下列有关水的说法不正确的是( ) A.过滤和吸附可以降低水

题型:选择题

问题:

水被称为“生命之源”,下列有关水的说法不正确的是(  )

A.过滤和吸附可以降低水的硬度

B.用肥皂水可区分硬水和软水

C.水是化学上最常用的溶剂

D.水是人体所需的一种营养素

考点:六大营养素硬水和软水水的性质和用途
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票据追索权指票据到期不获付款或期前不获承兑,或有其他法定原因出现时持票人在履行了保全手续后,向其前手请求偿还汇票金额利息及费用的一种票据上的权利。

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上腹部间歇性隐痛,突发上腹剧痛,全腹压痛,反跳痛,腹肌紧张。首先要做的检查是()。

A.胃镜检查

B.胃液脱落细胞学检查

C.X线立位腹平片

D.腹腔穿刺涂片检查

E.腹部B超

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The day finally came, when I had to leave the warm home where I’d grown up. I ran to the back yard, as tears came up from my heart. Suddenly I    36  a hand rest on my shoulder. I looked up to    37  my grandfather. “It isn’t    38  , is it, Billy?” he said softly.
He gently    39   my hand in his, and then we walked, hand in hand, to the front yard,    40   a huge red rose-bush sat alone.
“What do you see here, Billy?” he asked. I looked at the flowers, not knowing    41   to say, and then answered, “I see something soft and    42  , grandpa.”
He pulled me    43  . “It isn't just the roses that are beautiful, Billy. It’s that special place in your heart that makes them so.” “Billy, I    44   these roses when my first son was born. It was my    45   of saying ‘thank you’ to God. I    46   to watch him pick roses for his mother. Then, as a young man of only 20, a terrible war robbed him of his life.” Grandpa slowly stood up. “Never say good-bye, Billy. Never    47   to the sadness and the loneliness. Instead, I want you to remember the joy and the    48   when you first said hello to a friend.”
A year later, my grandpa became very    49  .Then all members of the family
were    50   back, and I returned to the old house. When it came to my    51  , I took his hand as    52   as he had once taken mine.
“Hello, grandpa,” I    53  .His eyes slowly opened and said, “Hello, my friend.” With a brief    54   he died. Suddenly, and truly, I knew what he had    55   about never saying good-bye — about refusing to give in to sadness.
小题1:
A.watchedB.fixedC.feltD.heard
小题2:
A.watchB.interviewC.see D.discover
小题3:
A.easyB.hardC.difficultD.comfortable
小题4:
A.tookB.madeC.ledD.carried
小题5:
A.whenB.whereC.whichD.while
小题6:
A.whether B.howC.whoD.what
小题7:
A.beautifulB.tastyC.funnyD. red
小题8:
A.farB.hardC.closeD.around
小题9:
A.plantedB.boughtC.treatedD.discovered
小题10:
A.approachB.wayC.methodD.solution
小题11:
A.preferredB.wantedC.usedD.referred
小题12:
A.give upB.give offC.give awayD.give in
小题13:
A.happinessB.word C.sightD.memory
小题14:
A.weakB.illC.oldD.serious
小题15:
A.orderedB.called C.deliveredD.sent
小题16:
A.pleasureB.dutyC.wish D.turn
小题17:
A.happilyB.sadlyC.gentlyD.carefully
小题18:
A.laughedB.shoutedC.whisperedD.added
小题19:
A.signB.sighC.waveD.smile
小题20:
A.thoughtB.meant C.worriedD.cared
题型:选择题

不属于砌体房屋静力计算方案的为( )。

A.刚性方案

B.弹性方案

C.塑性方案

D.刚弹性方案

题型:选择题

将三重积分的累次积分

表为定积分.

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