用两个相同的G表改装成量程不同的电流表A1和A2,其中A1的量程是A2的2倍,现

题型:选择题

问题:

用两个相同的G表改装成量程不同的电流表A1和A2,其中A1的量程是A2的2倍,现将它们接入电路,下列说法正确的是

A.若两表串联,则指针偏角θ1θ2,两表示数相等

B.若两表串联,则指针偏角θ1=θ2,A1示数大于A2示数

C.若两表并联,则指针偏角θ1θ2,两表示数相等

D.若两表并联,则指针偏角θ1θ2,两表示数相等

考点:实验:伏安法测电阻实验:练习使用示波器实验:测绘小灯泡的伏安特性曲线实验:探究影响导体电阻的因素
题型:选择题

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Forgiveness

To forgive is a virtue, but no one has ever said it is easy. When someone has deeply hurt you, it can be extremely difficult to let go of your hate. However, forgiveness is possible, and it can be surprisingly good for your physical and mental health. People who forgive show less sadness, anger and stress and more hopefulness, according to a recent research.

 小题1:  Try the following steps:

Calm yourself.   小题2:   You can take a couple of breaths and think of something that gives you pleasure: a beautiful scene in nature, or someone you love.

Don’t wait for an apology. Many times the person who hurt you does not intend to apologize. They may have wanted to hurt you or they just don’t see things the same way.   小题3:    Keep in mind that forgiveness does not necessarily mean becoming friends again with the person who upset you.

Take the control away from your offender(冒犯者). Rethinking about your hurt gives power to the person who caused you pain. Instead of focusing on your wounded feelings, learn to look for the love, beauty and kindness around you.

 小题4:   If you understand your offender, you may realize that he or she was acting out of unawareness, fear, and even love. You may want to write a letter to yourself from your offender’s point of view.

Don’t forget to forgive yourself.   小题5: But it can rob you of your self-confidence if you don’t do it.

A.Why should you forgive?

B.For some people, forgiving themselves is the biggest challenge.

C.Recognize the benefits of forgiveness.

D.Try to see things from your offender’s point of view.E. How should you start to forgive?

F. If you wait for people to apologize, you could be waiting an awfully long time.

G. To make your anger die away; try a simple stress-management skill.

题型:选择题

腔隙性梗塞治疗错误的是()。

A.控制高血压

B.抗血小板聚集剂

C.预防复发

D.钙拮抗剂

E.抗凝剂

题型:选择题

小红用一水平的力去推地面上的桌子,但未推动,这是因为(  )

A.推力小于此时桌子受到的摩擦力

B.桌子受到的重力与地面对桌子的支持力平衡,所以桌子水平方向不动

C.小红对桌子的推力等于桌子对小红的推力

D.推力与地面对桌子的摩擦力平衡,合力为零

题型:选择题

患者男性,68岁。慢性阻塞性肺疾病急性发作入院治疗,给予吸氧、抗感染对症支持疗法,今晨输液过程中自行调快滴数,30分钟后突然出现胸闷、呼吸困难,继之咳嗽、咯粉红色泡沫样痰,听诊两肺满布湿哕音,心率快且律不齐。

该患者可能发生

A.哮喘急性发作

B.过敏反应

C.急性肺水肿

D.空气栓塞

E.气胸

题型:选择题

炮采工作面泵站压力不得低于()MpA。

A.15

B.18

C.20

D.25

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