患者男性，21岁。打篮球时不慎右上肢划伤4小时，检查右前臂皮肤全层开长约2cm，有少

关于二次函数y=x²-4x+3，下列说法错误的是（        ）

A．当x＜1时，y随x的增大而减小

B．它的图象与x轴有交点

C．当1＜x＜3时，y>0

D．顶点坐标为(2，－1 )

关于先天性甲状腺功能减退症的智力低下，叙述正确的是（）

A.可逆的，可恢复正常

B.不可预防的

C.少数可预防，多数不能预防

D.患儿的典型症状出现后，替代治疗可逆转智力低下

E.新生儿筛查和早期替代治疗可预防智力低下的发生

Last Friday, I was coming home late after spending time with friends and thought I’d go down to the $99 cent pizza place. On the way, I saw a man sitting on the stairs alone there. I’d seen him before every day I run late to work, but this time I had no place to rush off to.

There was something about him, a quiet manner, different from many of other homeless people I had seen in New York City. I walked past him, went to the pizza place, and those 10 seconds waiting in line was enough to practice stepping outside of my usual, familiar flow. So with a few slices in hand, I went back to join him. I asked him if he was hungry. He said yes, but not for pizza because it made him uncomfortable. He’d rather have a few bucks for chicken and rice since it was easier on his stomach. It’s funny, in that moment, he became more real to me.

This man I had seen almost every day was someone with specific conditions, needs, and experiences. We exchanged names and ended up talking for a little over an hour that night as Kevin told me stories from his life, how he had done things when “he was younger and didn’t know any better” and how he tried to make amends (补偿) but too much time had passed. He shared his views on the value for young adults to learn the history of other people.

He talked about his one wish being in his 60’s before he leaves this earth, which is to share his story with the teenagers and young adults so they could avoid the mistakes he went through. Throughout the conversation, he eventually got his chicken and rice and gifted me a rose he had been carrying. Shortly afterwards, I made my way home, thinking to myself, “I met an amazing homeless person”.

小题1:The writer’s purpose in writing the passage is to ____.

A．share his experience

B．show his generosity

C．express his thoughts

D．exchange his opinions小题2:The homeless man refused pizza because he ____.

A．did not feel very hungry at that moment

B．had something wrong with his stomach

C．preferred some chicken and rice to pizza

D．might feel ashamed to be given something小题3:What’s the homeless man’s last wish?

A．To become a lot younger again.

B．To make amends for his early life.

C．To have enough chicken and rice to eat.

D．To teach the young not to follow his example.小题4:It can be inferred from the text that ____.

A．The homeless man is different from others

B．The writer showed his pity to the homeless man

C．What the homeless man thought shocked the writer

D．What the homeless man did was not very meaningful小题5:How do you like the homeless man after reading the passage?

A．Learned.

B．Honorable.

C．Determined.

D．Promising.

食品公司通常在“XX雪饼”的包装袋内放入一小包干燥剂，其上面的部分文字见图，请仔细阅读，回答问题：

（1）写出这包干燥剂吸收水分的反应的化学方程式．

（2）“请勿食用”是因为干燥剂吸水后具有什么样的性质？

病历摘要：患者男性，45岁，常年在外搞装修，嗜烟酒，有不洁性生活史。三个月前出现近事遗忘，经常出门忘记上锁，关灯等，不修边幅，有时自言自语或暗自发笑。做事情注意力易分散，性格孤僻，常与陌生人打招呼，似乎是老朋友。近一个月，情绪低落，不思饮食。行走易跌倒。查神志清楚，构音欠清，情绪欣快，虚构，记忆力，计算力，定向力差，双侧瞳孔不等，左侧2mm，右侧1.5mm，光反射消失，调节反射存在。舌肌震颤，双手轻微震颤，双下肢肌力4级，肌张力低，腱反射活跃，左侧Babinski征（+），Romberg征（+）。左半身痛觉减退。脑膜刺激征（-）。

有关先天性神经梅毒的表述哪些是正确的（）

A.妊娠4-7个月由母体传给胎儿

B.可见于所有类型的神经梅毒

C.有脑积水表现

D.可有瘫痪

E.可有语言障碍

F.可有间质性角膜炎

G.畸形牙齿

H.听力障碍