肝硬化腹水患者，应首选的利尿剂为A．速尿(呋塞米)B．甘露醇C．双氢氯噻嗪D．安体舒

阅读理解    

     When I was at university, I studied very hard. But a Jot of my friends did very little work. Some did

just enough to pass the exams. Others didn't do quite enough. Fred Baines was such a student. He spent

more time drinking in the Tea House than working in the library.    

     Once at the end of the term, we had to take   an important test in Chinese. The test had 100

questions. Beside each question we had to write "True” or “False". While I was studying in my room the

night before the test, Fred was watching TV. Fred usually worried a lot the night before a test. But on that night he looked very easy. Then he told me of his idea.   " 

     It's very simple. There are 100 questions and I have to get 50 right to pass the test. I'll take a coin into

the room. I haven't studied a Chinese book for months, so I'll toss(掷) the coin.  In that way, I'm sure "11 get half of the questions right.”  

     The next day, Fred came happily into the examination room. As he sat tossing a coin for half an hour,

he wrote down his answers. Then he left, half an hour before the rest of us.   

     The next day, Fred met his Chinese teacher at the school gate.  "Oh, good, "he said.  "Have you got

the results of' the test?" The teacher looked at him and smiled, "Ah, it's you, Baines. Just a minute. “Then

the teacher reached his pocket and took out a coin. He threw it into the air, caught in his hand and looked at it,” I’m sorry, Baines, you failed!“  

根据短文内容，判断下列句子的正(T)误(F)。

( )1. Fred Baines was a hard-working student.    

( )2. They had to take a Chinese test.    

( )3. Fred usually worried a lot the night before a test.    

( )4. Fred thought hard and wrote down his answers.    

( )5. Fred passed the test at last.

光合作用暗反应阶段中直接利用的物质是[ ]

A．O₂和C₃化合物

B．叶绿体色素

C．H₂O和O₂

D．[H]和ATP

证券交易所是集中交易市场，信息技术的进步以及经济金融全球化对交易所本身也产生了集中趋势。（）

以下哪项不符合白血病的特征( )

A．白细胞有明显的质和量的异常
B．白血病细胞浸润骨髓、肝、脾和淋巴结
C．白血病细胞可进入周围血液中
D．白血病细胞不侵犯中枢神经系统
E．白血病是造血系统的恶性疾病

通常使用三种策略处理危害或一旦发生就可能对项目目标有消极影响的风险。这些策略是回避、转移与( )。

A．减轻

B．利用

C．分享

D．增加