关于《刑法》第415条的规定，下列说法正确的是：( )

A:该罪的犯罪主体是生产,销售伪劣商品犯罪行为负有追究责任的国家机关工作人员 B:《刑法》第415条规定了办理偷越国（边）境人员出入证件罪 C:办理偷越国（边）境人员出入证件罪是指负责办理护照,签证以及其他出入境证件的工作人员明知是企图偷越国（边）境的人员，予以办理出入境证件的行为 D:《刑法》第415条规定了放行偷越国（边）境人员罪

患者男，27岁。要求固定修复。检查：缺失，缺隙较大，不松，叩（-）；松动I1度，叩（-）；余牙无异常。

若设计双端固定桥修复，此时应重点考虑

A:选用固位力较弱的固位体 B:增选和联合做基牙 C:增加桥体的机械强度 D:增加桥体的牙尖高度 E:增加桥体的颊舌径

L415管线钢的最低屈服强度应为415（）。

A:公斤 B:兆帕 C:千克力 D:千磅/英寸²

患者，35岁，女性，教师，缺失，远中切角缺损，已做根管治疗，余正常，该患者的最佳设计应为（）。

A:缺损部位光敏树脂恢复，可摘局部义齿修复 B:桩冠修复，可摘局部义齿恢复 C:铸造桩核，以为基牙固位义齿修复 D:截冠，覆盖义齿修复 E:桩冠修复，为基牙固定义齿修复

一患者行金属烤瓷冠修复，冠就位后发现冠十分密合，经调无早接触后选择聚羧酸粘固剂粘固，调拌粘固剂时严格按照粉、液比例，按就位道方向就位，面垫一棉卷，让患者紧咬5分钟，粘固完成后再次检查发现咬合过高 在粘固前可采取的预防措施是（）

A:将冠组织面均匀磨去一小层 B:将牙体组织面均匀磨去一小层 C:将粘固剂调稀一些 D:在于体轴壁上预备一纵向小沟 E:在粘固前将冠调至低

Coffee lovers beware. Having a quick "pick-me-up" cup of coffee late in the day will play havoc with your sleep. As well as being a stimulant, caffeine interrupts the flow of melatonin, the brain hormone that sends people into a sleep.
Melatonin levels normally start to rise about two hours before bedtime. Levels then peak between 2 am and 4 am. before falling again. "It’s the neurohormone that controls our sleep and tells our body when to sleep and when to wake," says Maurice Ohayon of the Stanford Sleep Epidemiology Research Center at Stanford University in California. But researchers in Israel have found that caffeinated coffee halves the body’s levels of this sleep hormone.
Lotan Shilo and a team at the Sapir Medical Center in Tel Aviv University found that six volunteers slept less well after a cup of caffeinated coffee than after drinking the same amount of decaf. On average, subjects slept 336 minutes per night after drinking caffeinated coffee, compared with 415 minutes after decaf. They also took half an hour to drop off twice as long as usual and jigged around in bed twice as much.
In the second phase of the experiment, the researchers woke the volunteers every three hours and asked them to give a urine sample. Shilo measured concentrations of a breakdown product of melatonin. The results suggest that melatonin concentrations in caffeine drinkers were half those in decaf drinkers. In a paper accepted for publication in Sleep Medicine, the researchers suggest that caffeine blocks production of the enzyme that drives melatonin production.
Because it can take many hours to eliminate caffeine from the body, Ohayon recommends that coffee lovers switch to decaf after lunch.
What does paragraph 3 mainly discuss

A:Different effects of caffeinated coffee and decal on sleep. B:Different findings of Lotan Shilo and a team about caffeine. C:The fact that the subjects slept 415 minutes per night after drinking decaf. D:The proof that the subjects took half an hour to fall asleep.

Coffee lovers beware. Having a quick "pick-me-up" cup of coffee late in the day will play havoc with your sleep. As well as being a stimulant, caffeine interrupts the flow of melatonin, the brain hormone that sends people into a sleep.
Melatonin levels normally start to rise about two hours before bedtime. Levels then peak between 2 am and 4 am, before falling again. "It’s the neurohormone that controls our sleep and tells our body when to sleep and when to wake," says Maurice Ohayon of the Stanford Sleep Epidemiology Research Center at Stanford University in California. But researchers in Israel have found that caffeinated coffee halves the body’s levels of this sleep hormone.
Lotan Shilo and a team at the Sapir Medical Center in Tel Aviv University found that six volunteers slept less well after a cup of caffeinated coffee than after drinking the same amount of decaf. On average, subjects slept 336 minutes per night after drinking caffeinated coffee, compared with 415 minutes after decaf. They also took half an hour to drop off — twice as long as usual — and jigged around in bed twice as much.
In the second phase of the experiment, the researchers woke the volunteers every three hours and asked them to give a urine sample. Shilo measured concentrations of a breakdown product of melatonin. The results suggest that melatonin concentrations in caffeine drinkers were half those in decaf drinkers. In a paper accepted for publication in Sleep Medicine, the researchers suggest that caffeine blocks production of the enzyme that drives melatonin production.
Because it can take many hours to eliminate caffeine from the body, Ohayon recommends that coffee lovers switch to decaf after lunch.
What does paragraph 3 mainly discuss

A:Different effects of caffeinated coffee and decaf on sleep. B:Different findings of Lotan Shilo and a team about caffeine. C:The fact that the subjects slept 415 minutes per night after drinking decaf. D:The evidence that the subjects took half an hour to fall asleep.

Late-night Drinking
Coffee lovers beware. Having a quick "pick-me-up" cup of coffee late in the day will play havoc with your sleep. As well as being a stimulant, caffeine interrupts the flow of melatonin, the brain hormone that sends people into a sleep.
Melatonin levels normally start to rise about two hours before bedtime. Levels then peak between 2 am and 4 am, before falling again. "It’s the neurohormone that controls our sleep and tells our body when to sleep and when to wake," says Maurice Ohayon of the Stanford Sleep Epidemiology Research Center at Stanford University in California. But researchers in Israel have found that caffeinated coffee halves the body’s levels of this sleep hormone.
Lotan Shilo and a team at the Sapir Medical Center in Tel Aviv University found that six volunteers slept less well after a cup of caffeinated coffee than after drinking the same amount of decaf. On average, subjects slept 336 minutes per night after drinking caffeinated coffee, compared with 415 minutes after decal They also took half an hour to drop off — twice as long as usual — and jigged around in bed twice as much.
In the second phase of the experiment, the researchers woke the volunteers every three hours and asked them to give a urine sample. Shilo measured concentrations of a breakdown product of melatonin. The results suggest that melatonin concentrations in caffeine drinkers were half those in decal drinkers. In a paper accepted for publication in Sleep Medicine, the researchers suggest that caffeine blocks production of the enzyme that drives melatonin production.
Because it can take many hours to eliminate caffeine from the body, Ohayon recommends that coffee lovers switch to decaf after lunch.

What does paragraph 3 mainly discuss（　）

A:Different effects of caffeinated coffee and decaf on sleep. B:Different findings of Lotan Shilo and a team about caffeine. C:The fact that the subjects slept 415 minutes per night after drinking decaf. D:The evidence that the subjects took half an hour to fall asleep.