流行性斑疹伤寒不同于地方性斑疹伤寒的是（） A.接种雄性豚鼠腹腔引起发热 B.具有不

阅读理解。

     Can plants eat people? Probably not, but there are many plants that eat meat. Some of them are big. And

they can eat small animals. One famous meat-eating plant is the Venus flytrap (捕蝇草).

     The Venus flytrap is a very strange plant. It grows in dry parts of the United States. Its leaves are like the

pages of a book. They can open and close very quickly. Inside the leaves, there are three small hairs. If a fly

touches one of the hairs, the leaf closes quickly. The fly cannot get out. In about half an hour, the leaf presses

the fly until'it is dead. Then, the plant covers the fly. Slowly,the plant eats the fly.

     Why do plants do it? Most plants get what they need from the sun, the air, and the ground. In some places,

the ground is very poor. It doesn't have all these important things, especially nitrogen (氮). Animal meat has

a lot of nitrogen, so some plants eat meat to get what they need. Let's hope that some of the bigger plants don't

get the same idea !

1. The Venus flytrap is a kind of _______.

A. plant

B. animal

C. food

D. meat

2. The Venus flytrap grows in _______.

A. most parts of the world

B. some parts of Africa

C. dry parts of the United States

D. wet parts of England

3. From the passage, we leam that _______.

A. all plants can eat people

B. all plants can eat animals

C. some plants can eat people

D. some plants can eat animals

4. The underlined word "presses" probably means _______ in Chinese.

A. 挤压

B. 关上

C. 打开

D. 松开

5. Why do some plants eat animal meat? Because _______.

A. plants are dangerous to animals

B. animals are dangerous to plants

C. plants want to get what they need from animals' meat

D. plants want to protect themselves against animals

患者男性，45岁。因上腹痛半年就诊。与饮食无明显关系，吐酸水，常腹泻，曾有黑粪2次，制酸药效果不佳。X线胃肠钡剂造影（GI）发现胃及十二指肠球部、降部均有溃疡，基础排酸量（BAO）25mmol/L，该病例的诊断为（）

A.胃十二指肠溃疡

B.胃癌

C.胰腺非B细胞瘤

D.胰腺B细胞腺瘤

E.十二指肠壶腹后溃疡

接受氨基可直接转化为丙氨酸的是（）

A.琥珀酸

B.丙酮酸

C.苹果酸

D.草酰乙酸

E.α-酮戊二酸

下面关于HTML说法错误的是？（）

A、HTML是一种标记语言

B、HTML可以控制页面和内容的外观

C、HTML文档总是静态的

D、HTML文档是超文本文档

用设计基准作为精基准，以便消除基准不重合误差，即所谓（）原则。

A.基准统一

B.自为基准

C.基准重合

D.基准不定