属非器官特异性自身免疫性疾病的是（） A.重症肌无力 B.萎缩性胃炎 C.系统性红斑

Fe(NO₃)₂溶液呈浅绿色，其中存在下列平衡：

Fe²⁺+2H₂OFe(OH)₂+2H⁺

向溶液中逐滴加入盐酸，发生的变化是(    )

A．平衡向左移动，溶液浅绿色加深

B．平衡向右移动

C．溶液由浅绿色变成黄色

D．无明显变化

阅读理解。

     Rembrandt was an extraordinary Dutch painter. He was most well-known for his brushwork and

the way in which he connected with the human soul. His life, however, was not happy.

    He was born on July 15, 1606 in Leiden, the Netherlands. His father wanted him to have a real,

learned profession but Rembrandt left the University of Leiden after becoming bored. He began studying

art under a local teacher but soon left and studied in Amsterdam where he mastered all his lessons in six

months!

     At the age of 22, he moved back to Leiden and began to get his own students. One of his students

was the famous artist Gerrit Dou. In 1631 he returned to Amsterdam where he became the most popular

portrait painter in Holland. Rembrandt met Saskia and married her in 1634. She was a cousin of a very

successful art dealer and she helped him to meet wealthy people who commissioned (委任制作) many

paintings from him. He used her as a model in many of his paintings.

     Rembrandt's private life, however, was very unfortunate. He had four children with Saskia but only

one, Titus, survived. Saskia died in 1642 at the age of only 30. In 1649, his housekeeper became his

second wife and was also a model for many of his paintings. Even though Rembrandt was very successful

as an artist, art dealer and teacher, he lived in a careless way and had to declare bankruptcy (破产) in

1656. He even had to sell his whole art collection and his house to pay off his debts.

     His unfortunate life, however, didn't affect his art. He painted many great paintings during that time.

His new love, Hendrickje, died in 1663 and his 27-year-old son, Titus, died in 1668. Eleven months

later, on October 4, 1669, Rembrandt died in Amsterdam. He produced more than 600 paintings and

over 2,000 drawings!

1. Which of the following is the reason that made his business fail?

A. As an extraordinary Dutch painter, he knew nothing about business.

B. He spent most of his time on art, leaving no time to care his business.

C. All his children but Titus died, which made him very sad.

D. Like other famous artists, he was thoughtless.

2. From the passage we learn that Rembrandt         .

A. graduated from the University of Leiden.  

B. began his teaching career in 1628.

C. married Saskia when he was 22 years old.

D. was good at drawing animals and flowers.

3. How many members of Rembrandt's family died before him, not including his parents?

A. Four  

B. Five  

C. Six  

D. Seven

4. What's the best title for this passage?

A. A brief biography of Rembrandt  

B. A great Dutch painter  

C. The greatest painter in the world  

D. Rembrandt's unhappy family  

以下哪个要求不是高致病性病原微生物菌（毒）种或样本的容器或者包装材料应当印有的信息（）

A、生物危险标签、标识

B、运输登记表

C、警告用语

D、提示用语

E、分离出菌（毒）种的病人姓名

如有一个同事在领导那里告了你的状，你怎么处理？

我国按照岩石压入硬度的大小，将岩石分为（）类

A、4

B、5

C、6

D、7