什么是单子叶植物?并举例说明。

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问题:

什么是单子叶植物?并举例说明。

考点:国家公务员农村党员干部科技致富知识农村党员干部科技致富知识题库
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能用速率散射比浊法检测出的血清RF为()

A.IgM型

B.IgG型

C.IgE型

D.IgD型

E.IgA型

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(1)在玻璃皿的中心放一个圆柱形电极,沿边缘内壁放另一个圆环形电极,把他们分别与电池的两极相连,然后在玻璃皿中倒入NaCl导电液体,整个装置放在如图磁场中,接通电源,会发现液体旋转起来.

①若从N极向S极看,液体旋转方向为______(填“顺时针”

或“逆时针”)

②简要说明液体旋转起来的原因______

(2)宿迁市某校物理科技研究小组在操场上进行课外探究实验,如图所示,把一条大约10米长电线两端连在一个灵敏电流表两个接线柱上,形成闭合回路,甲乙两位同学迅速摇动这条电线.

①你认为甲、乙两位同学沿______方向站立,灵敏电流表指 针偏转更明显(填“东西”或“南北”).

②电线经过最低点时的速度方向为图中箭头方向,则:此时电流的方向为______

A.甲→乙→电流表→甲       B.乙→甲→电流表→乙.

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公安机关的任务,是指公安机关在国家法律所确定的管辖范围内,为实现一定的目标所进行的工作内容。 ( )

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Sometimes children do not do what their parents tell them to do. When this happens, a parent tries to help the child to do the right thing. When this does not work, the parent usually punishes the child.

There are many things that a parent can do. One thing that people have done is to spank (打屁股) the child. When a parent spanks a child, they will use their hand or a hard object to strike them on their bottom. This is meant to show the child that they have done something wrong.

One parent remembers being spanked when he was a child. His parents used a wooden spoon. When he spanked his own children with his hand, he saw that he put a red mark on his child’s leg. He never did that again.

One problem with spanking is that it teaches the child to hit someone when they do not like what the other person is doing. Another problem with spanking is that the parent is usually angry and can hit the child too hard. Sometimes parents will use spanking for everything and not try other ways to get the child to do the right thing.

Many parents are not sure of what to do instead of spanking. Some people think that their religion tells them that spanking is okay. Some think that the law lets them do it. The courts (法院) say that parents have the right to teach their children how to behave.

Other things should be tried before a parent decides to spank a child. Telling the child exactly what is wanted from them can be one thing. Giving a child more than one choice is another thing that can be tried. Getting down to the child’s level and taking a more child-friendly approach (方法) can help as well.

小题1:According to the passage, when children do something wrong, one thing that parents usually do to punish them is to ________.

A.strike them on the bottom

B.try to help them do the right thing

C.teach them what to do

D.take them to court小题2: Which of the following is NOT the problem caused by spanking?

A.It teaches the child to hit others when they offend(使人不快) him or her.

B.The parent may get angry and hit the child too hard.

C.Sometimes parents may use spanking for everything.

D.It makes parents try other ways to make the child do right.小题3:Which of the following can best describe the writer’s attitude towards spanking?

A.favorable

B.indifferent

C.interested

D.unfavorable小题4:From this passage, we can conclude that ________.

A.Good children always do the right thing.

B.Parents should try their best to avoid spanking their children.

C.Parents have no choice but to spank their children when they do something wrong.

D.Children can have more than one choice to avoid being spanked.

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某实施监理的工程项目,监理单位承担了某工程的施工阶段监理任务,该工程由甲施工单位总承包。甲施工单位选择了经建设单位同意并经监理单位进行资质审查合格的乙施工单位作为分包。
问题:
施工过程中发生了以下事件:

事件5:对上述施工单位的索赔,建设单位称:本次停工系监理工程师失职造成,且事先未征得建设单位同意。因此,建设单位不承担任何责任,由于停工造成施工单位的损失应由监理单位承担。
建设单位的说法是否正确,为什么

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