某园艺场，某工人在夏季施用农药期间，突然感到头痛、头晕、恶心等。经检查证实为急性农药

数据库系统的核心是________。

A．编译系统

B．数据库

C．操作系统

D．数据库管理系统

男，16岁，因诊断急性粒细胞性白血病(M₂型)住院化疗第三个疗程，于用药第四天突发脐周痛，伴发热，即查血淀粉酶320U，尿淀粉酶正常。停化疗后第二天出现腹膜刺激征。复查尿淀粉酶2100U，以下诊断最可能的是

A．急性胆囊炎

B．胆石症

C．高位阑尾穿孔

D．急性胰腺炎

E．急性肠梗阻

在下列两个实例中各有5个问题，请在各问题答案的选项中，选出一个或一个以上正确答案。

京维公司委托通达物流有限公司代理报关，向天津海关递交的《进口货物报关单》，其“运输工具名称”栏填报正确的是( )。

A．JULONG号

B．JULONG/@/501

C．@+JULONG/501

D．@+16位转关申报单预录入号

My First Experience with AIDS Patients

我初次接触艾滋病人

by Marc Kielburger

I was ushered to the AIDS ward of a hospice in the slum.I would later learn that the ward did not exist，at least not officially.Not a single person in Thailand had AIDS，according to the Thai government at the time.People got"sick，"of course，sometimes"very sick."but no one had AIDS.The hospice was home to an ever-growing number of"very sick"people.

I entered the ward and was greeted by two Thai nurses.

"Thank goodness you are here，Marc，"said the first.

"You’re a doctor，right"

I shook my head.

"So you are a medical student then!"

I shook my head again.

"But you know medicine，right"

"Kinda，"I offered."I watch E.R.,every Thursday"

After a rapid exchange in Thai，the first one said，"NO problem.Get ready for your fou- hour medical school training!"

"But in my country medical school takes years!" I protested.

"We don’t have that long," she replied. "So we better get started. "

During the next few hours, I learned to clean wounds, administer IVs, treat bedsores, and dispense medicine. The work was punishing, made worse by stifling heat, frequent blackouts, and an incredible stench in the air. I tried desperately to hide my weak nerves and queasy stomach, but more than once dashed for the bathroom to throw up.

Just when it seemed my training was coming to an end, the nurse took me aside. "There are only two more things you need to know," she said. "On the left-hand side of the ward, you will find what we call the Exit Area. " As it turned out, she meant "exit" in the largest sense of the word. Terminally ill patients were hidden behind a curtain and then exited out of the ward after death. "The second thing you need to know," she continued, "is that we haven’t had a day off in three weeks. You’ll be looking after the ward by yourself for the next shift. "

My jaw dropped.

"Don’t worry, Mare," said the other nurse, patting me on the shoulder before turning to leave. "Think of this as the beginning of your residency !" And with that, they walked out. Alone and petrified, I tried unsuccessfully to keep calm.

I counted to twenty-four. That’s how many AIDS patients were in my charge. What am I going to do I thought. What can I do I fell back on my training with the Canadian government and put my talents to work. I served patients water-some with ice, some without. Next, I tried to cheer up everyone, myself included, giving enthusiastic high-fives to patient after patient. Soon enough, everyone was laughing. Some were laughing with me, others most definitely at me, but I didn’t care. As long as I could keep people smiling, I was sure it would all be fine. And it was. Until a short while later, when a patient in the Exit Area began to choke. He had fluid in his lungs and could not breathe. As I crossed the floor, I could hear the man gasping for air. Fumbling and scared, I pulled back the curtain and administered the medicine the nurses had recommended. The man didn’t respond. With nothing left to offer, I sat down and held his hand, looking into his eyes as he breathed heavily for a while and then stopped. Watching him slip away, I was hit by a feeling of anguish such as I’d never felt, either before or since. It haunts me to this day.

Judging from the passage, what is the writer most likely to be （）

A．A doctor

B．A medical student

C．A volunteer

D．A government official

以下关于嗜睡症的说法哪些是正确的（）

A.患者过多的睡眠不是由于睡眠不足、药物、酒精、躯体疾病所致

B.患者不存在睡眠时间不足，但白天睡眠过多

C.神经衰弱、抑郁症等某些精神障碍引起的嗜睡不应诊断为嗜睡症

D.嗜睡症可以采用小剂量中枢兴奋剂治疗

E.患者有入睡前幻觉和醒前幻觉