[不定项选择题]某病人上颌第二磨牙有龋洞，洞内呈黑褐色，探诊质软，对冷热酸甜刺激敏感 若检查洞底，位于牙本质浅层牙髓活力良好，可诊断为
A.深龋
B.浅龋
C.中龋
D.隐匿性龋
E.静止龋

[不定项选择题]某病人上颌第二磨牙有龋洞，洞内呈黑褐色，探诊质软，对冷热酸甜刺激敏感 若病人常有"咬合痛"但无自发疼痛，此时应诊断为
A.静止龋
B.隐匿性龋
C.中龋
D.浅龋
E.深龋

[不定项选择题]某病人上颌第二磨牙有龋洞，洞内呈黑褐色，探诊质软，对冷热酸甜刺激敏感 若病人为根面中龋，效果最好的治疗为
A.银汞合金充填
B.氟化物
C.玻璃离子水门汀
D.复合树脂充填
E.以上都不是

[不定项选择题]某病人上颌第二磨牙有龋洞，洞内呈黑褐色，探诊质软，对冷热酸甜刺激敏感 此时最常用的修复方法为
A.窝沟封闭法
B.充填法和嵌体
C.局涂复化凝胶
D.用矿化液治疗
E.以上都不对

[不定项选择题]某病人上颌第二磨牙有龋洞，洞内呈黑褐色，探诊质软，对冷热酸甜刺激敏感 若要恢复其牙齿外形和生理功能，治疗方法应为
A.银汞合金充填
B.刷牙
C.氟化物治疗
D.口服螺旋霉素
E.以上都不是

[不定项选择题]某病人就诊时发现上颌第一磨牙邻面釉质龋，其邻牙缺失，病变处变硬，恢复光泽，但有色素沉着 其合适的治疗是
A.药物治疗
B.洁齿
C.根管充填
D.拔牙
E.以上都不对

[不定项选择题]刘小姐，24岁。右侧第二磨牙牙龈红肿，牙痛影响睡眠。 最佳的护理指导是
A.红外线照射
B.侧卧位面颊置热水袋
C.口含温开水
D.侧卧位面颊置冰袋
E.口含冰块

[不定项选择题]刘小姐，24岁。右侧第二磨牙牙龈红肿，牙痛影响睡眠。 护理指导的依据是
A.冷使神经末梢敏感性降低
B.热减轻组织充血
C.冷降低局部温度
D.热促进炎症的消散与局限
E.热减低痛觉神经的兴奋性

[不定项选择题]患者男性，45岁，右下第一双尖牙及右上第一、第二磨牙残根，既往曾有风湿性心脏病史10余年，现存在二尖瓣狭窄，心功能Ⅰ级。 此类致病菌对下述何种抗菌药物敏感
A.庆大霉素
B.青霉素
C.甲硝唑
D.氯霉素
E.链霉素

[不定项选择题]患儿，7岁，右下后牙松动近2个月。检查：右下第二乳磨牙无龋，松动Ⅰ度，右下第一恒磨牙冠远中萌出。X线片示右下第二乳磨牙远中根完全吸收，近中根完好，右下第一恒磨牙近中边缘嵴进入吸收区。 右下第二乳磨牙松动的病因为
A.牙周炎
B.根尖周炎
C.右下第一恒磨牙异位萌出
D.生理性吸收
E.牙髓炎

[不定项选择题]共用题干 第二篇

A Phone That Knows You're Busy

It's a modern problem : you're too busy to be disturbed by incessant（连续不断的）
phone calls so you turn your cellphone off.But if you don't remember to turn it back on
when you're less busy,you could miss some important calls.If only the phone knew when
it was wise to interrupt you,you wouldn't have to turn it off at all.Instead,it could let calls
through when you are not too busy.
A bunch of behavior sensors（传感器）and a clever piece of software could do just
that,by analyzing your behavior to determine if it's a good time to interrupt you.If built into
a phone,the system may decide you're too busy and ask the caller to leave a message or
ring back later.
James Fogarty and Scott Hudson at Camegie Mellon University in Pennsylvania based
their system on tiny microphones,cameras and touch sensors that reveal body language
and activity.First they had to study different behaviors to find out which ones strongly
predict whether your mind is interrupted.
The potential"busyness"signals they focused on included whether the office doors
were left open or closed,the time of day,if other people were with the person in question,
how close they were to each other,and whether or not the computer was in use.
The sensors monitored these and many other factors while four subjects were at work.
At random intervals,the subjects rated how interruptible they were on a scale ranging from
"highly interruptible"to"highly not-interruptible".Their ratings were then correlated with
the various behaviors. " It is a shotgun（随意的）approach: we used all the indicators we
could think of and then let statistics find out which were important,"says Hudson.
The model showed that using the keyboard,and talking on a landline or to someone
else in the office correlated most strongly with how interruptible the subjects judged
themselves to be.
Interestingly,the computer was actually better than people at predicting when someone
was too busy to be interrupted.The computer got it right 82 percent of the time,humans 77
percent.Fogarty speculates that this might be because people doing the interrupting are
inevitably biased towards delivering their message,whereas computers don't care.
The first application for Hudson and Fogarty's system is likely to be in an instant
messaging system,followed by office phones and cellphones. "There is no technological
roadblock（障碍）to it being deployed in a couple of years,"says Hudson. The behavior sensor and software system built in a phone
A.could help store messages.
B.could send messages instantly.
C.could tell when it is wise to interrupt you.
D.could identify important phone calls.