女童,6岁。右下后牙吃饭时疼痛1周。检查:龋洞较深,腐质黄褐色,不松动,叩痛(一)。

题型:单项选择题 案例分析题

问题:

女童,6岁。右下后牙吃饭时疼痛1周。检查:龋洞较深,腐质黄褐色,不松动,叩痛(一)。萌出2/3,近中窝沟微卡探针,略粗糙。咬合面龋洞浅。牙色充填体,边缘不密合。

第一恒磨牙应做的治疗是()

A.观察

B.涂布氟化钠

C.窝沟封闭

D.预防性树脂充填

E.备洞,银汞合金充填

考点:口腔科住院医师儿童口腔病学儿童口腔病学题库
题型:单项选择题 案例分析题

下列哪项属于水电站电气控制设备系统的设备()。

A.机旁盘、励磁设备

B.调速器、机旁盘

C.高压开关设备、发电机母线

D.油气水管路、通风采光设备

题型:单项选择题 案例分析题

Most recently, it's very common in students who need a parent present for job interviews. Naturally, it's easy to blame the students in these situations, but the bigger problem is us. We—as parents—are so eager to shelter our kids that we fail to realize that this in itself is harming them. As the mother of two young sons, I have to remind myself constantly that the biggest responsibility I have as a parent is to help them develop the skills needed to live in, to live without me. So, I'll let them fail.

I'll let them fail because as long as they are safe and warm inside their comfort zones, they will never grow. And failure along with loss, heartbreak, disappointment, etc.—will be part of growth for them. Call me the anti-tiger mom, but leaving them alone is, my way of helping them become equipped to fit in this world as we know it today. From terrorism and seemingly endless natural disasters, to our national debt and beyond, if we expect the next generation to stand up to the very real problems of our time, we need to stop feeding them and start teaching them how to fish.

My children now are becoming little masters of compromise, but they try to negotiate everything now. It's a small price to help them learn a skill they'll use for the rest of their lives, including when I don't accompany them on job interviews.

小题1:Why do parents accompany their kids on job interviews?

A.Because they want to protect their kids from difficulties.

B.Because they think they can help them on the questions.

C.Because their kids are too shy to attend interviews.

D.Because their kids strongly request them to do so.小题2:According to the author, what is beneficial to kids' development?

A.Sheltering them.

B.Keeping them safe.

C.Leaving them alone.

D.Blaming them.小题3:Why does the author stress failure in kids' life?

A.To make them stronger than other kids.

B.To help them grow in this tough world.

C.To help them develop all social skills.

D.To make them learn to compromise.小题4:Which of the following might be the best title for the text?

A.Never Shelter Your Kids

B.Let Your Kids Fail

C.Be Eager to Grow Up

D.Live Without Parents

题型:单项选择题 案例分析题

某同学用传感器探究作用力与反作用力的关系,实验时他把两只力传感器同时连接在计算机上.如图是他记录的两个物体间作用力和反作用力的变化图线.根据图线可以得出的结论是(  )

A.作用力大时反作用力小

B.作用力和反作用力的方向总是相反的

C.作用力变化在先,反作用力变化在后

D.两个物体一定都处于平衡状态

题型:单项选择题 案例分析题

掉期交易员最关心的数据是( )。

A.外汇市场汇率

B.各种货币的利率

C.汇率升水

D.银行头寸

题型:单项选择题 案例分析题

水生生物由南向北的地理分布往往受夏季高温的限制。

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