以下关于木材力学性质说法正确的是( )。A.木材顺纹方向抗拉强度小,横纹方向抗拉强

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问题:

以下关于木材力学性质说法正确的是( )。

A.木材顺纹方向抗拉强度小,横纹方向抗拉强度大

B.木材顺纹方向抗压强度小,横纹方向抗压强度大

C.木材顺纹方向抗剪强度小,横纹方向抗剪强度大

D.木材顺纹方向抗弯强度小,横纹方向抗弯强度大

考点:造价工程师建设工程技术与计量(土建)建设工程技术与计量(土建工程部分)39
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根据短文内容和首字母提示,在下文空格处填入适当的词使短文完整。(每空一词)

Operation Smile was s  小题1:  up by a doctor and his wife, a nurse. In 1982 they travelled to the Philippines with a g  小题2:of volunteers to help children who had p  小题3: with their faces. These children had holes in their lips or inside their mouths. It was very d  小题4:  for these children to eat.

They helped many children in the Philippines, but they were sad because they didn’t have enough

m  小题5:  to help all the children They decided to start a charity so that they could help them. They called it Operation Smile.

Now Operation Smile helps children in more than twenty d  小题6:  countries and has c  小题7:    about ten thousand children. Operation Smile has won many prizes for its work and in 1999.another s  小题8:   activity was started. Which was called “The World Journey of Hope”. During this activity, more than five thousand children with holes in their mouths and lips were cured in eighteen different countries around the world.

Operation Smile also t  小题9:   doctors in developing countries so that they can continue to help children even after the Operation Smile team has left the country. Children with serious problems are brought to the USA for t  小题10:  . AII of this costs a lot. so please give as much as possible. Many thanks from the children who can now smile.

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在给一留有长发的卧床女患者进行头发护理时护士应()

A.让患者仰卧头转向一侧

B.将头发从中间分两股

C.左手紧握一股头发

D.右手持梳由发稍逐段梳至发根

E.若头发纠结可用50%乙醇湿润后再梳

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实验室配制0.20 mol/L NaOH溶液,下列操作正确的是(   )

A.在烧杯中溶解后直接转移到容量瓶

B.洗涤烧杯后的溶液用玻璃棒引流到容量瓶中

C.缓缓地将蒸馏水注入容量瓶至溶液的凹液面正好与刻度线相切

D.定容后把容量瓶倒置摇匀,发现液面降低,继续加水至刻度线

题型:单项选择题

M(NO3)2热分解化学方程式为:2 M(NO3)22MO+4NO2↑+O2↑。加热29.6g M(NO3)2使其完全分解,在标准状况下收集11200mL的气体,那么M的摩尔质量是[ ]

A.64g/mol

B.24g/mol

C.65g/mol

D.40g/mol

题型:单项选择题

视图设计器中包含的选项卡有

A.更新条件、筛选、字段

B.显示、排序依据、分组依据

C.更新条件、排序依据、显示

D.联接、显示、排序依据

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