下列有关生命的物质基础和结构基础的叙述正确的是[ ] A.C、H、O、N、P是A

题型:选择题

问题:

下列有关生命的物质基础和结构基础的叙述正确的是[ ]

A.C、H、O、N、P是ATP、染色质、质粒、核糖体共有的化学元素

B.同一个体的不同体细胞中,核酸分子相同,蛋白质不完全相同

C.绿色植物叶肉细胞的细胞质基质、线粒体基质及叶绿体基质功能都相同且均能生成ATP

D.蓝藻细胞中在遗传上有一定自主性的细胞器包括线粒体和叶绿体

考点:细胞的基本结构和功能的关系细胞中的元素
题型:选择题

阅读理解。

      It's sunny today. Li Ming is very happy because it is a special (特别的) day — Father's Day. Li

 Ming's father is a teacher. He comes home from work at 6:30 every day. Li Ming wants to buy a present

 for his dad. His father's favourite fruit is the pear. He goes to the supermarket to buy some pears. Then

 he gets home and does some cleaning (打扫). At 6:30, his father comes back. Li Ming gives his father

 a beautiful card (卡片). It says "Happy Father's Day!" Li Ming's father feels very happy.

1. It's a _____ day today.

A. fine

B. snowy

C. cloudy

D. windy

2. When does Li Ming's father come home from work?

A. At 6:00.

B. At 6:30.

C. At 7:00.

D. At 7:30.

3. What day is it today?

A. Mother's Day.

B. Teachers' Day.

C. Father's Day.

D. New Year's Day.

4. What does Li Ming give his father today?

A. A cake.

B. A radio.

C. A card.

D. A bicycle.

5. Which of the following is NOT true?

A. Li Ming's father likes pears very much.

B. Li Ming does some cleaning before his dad comes home.

C. There's "Happy Father's Day!" on the card.

D. Li Ming's father feels very tired.

题型:选择题

黑体辐射电磁波的强度按波长的分布只与黑体的______有关,并且辐射的能量是一份一份的,每一份的能量值叫做______.

题型:选择题

标志着国家工业化建设开始的是 [ ]

A.土地改革

B.第一个五年计划的执行

C.三大改造

D.过渡时期总路线的提出

题型:选择题

患者右上颌缺失,前部牙槽嵴欠丰满,组织倒凹明显,无接触点、食物嵌塞

模型向后倾斜使就位道为从前下向后上有以下作用,除了()

A.减小牙槽嵴唇侧倒凹

B.减小人工牙与余留牙之间的间隙

C.使就位道与脱位方向不一致,从而获得制锁作用

D.增大双侧7颊侧远中倒凹

E.便于义齿的就位

题型:选择题

在项目进度管控中,生产副经理应采取各种方式查找差距、落实计划,实施进度有效控制。以下属于所采取的方式是()。

A.每日生产交班会

B.周例会

C.专题会

D.专项安全质量大检查

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