公元1802年法国生物学家（）和（）G.特雷维拉努斯分别采用“生物学”（Biolog

发布时间：2017-06-30 19:13 │ 来源：www.tikuol.com

题型：填空题

问题：

公元1802年法国生物学家（）和（）G.特雷维拉努斯分别采用“生物学”（Biology）这个术语

考点：自然科学知识竞赛自然科学知识竞赛题库

题型：填空题

某研究性学习小组用图甲所示的装置探究加速度与合外力的关系，装置中的铝箱下端连接纸带，砂桶中可放置砂子以改变铝箱所受的外力大小。铝箱向上运动的加速度a可由打点计时器和纸带测出。现保持铝箱总质量m不变，逐渐增大砂桶和砂的总质量进行多次实验，得到多组a、F值（F为力传感器的示数，等于悬挂滑轮绳子的拉力）。已知重力加速度为g，不计滑轮的重力。某同学根据实验数据画出了图乙所示的一条过坐标原点O的倾斜直线，其中纵轴为铝箱的加速度大小，横轴应为________________（用所给字母表示）；当砂桶和砂的总质量较大导致a 较大时，图线

A.偏向纵轴

B.偏向横轴

C.仍保持原方向不变

D.斜率逐渐减小

查看答案

题型：填空题

阅读理解。

Across the United States, there are several places where two independent towns grew together to become
one city-but kept both their names.

Winston-Salem is one of them It's a mid- sized city in
what's called the plateau (high land), between the Atlantic
Coast and the inland mountains in the state of North Carolina.
The Winston part is a relatively new place, founded early this
century. It's home to the nation's biggest open-air tobacco
market.

     The giant R J. Reynolds Tobacco Company's head-quarters is in Winston-Salem, and Winston is the name
of one of Reynolds' best-known cigarette brands. Fast-growing Winston soon surrounded the much older town
of Salem, so in 1913, people in the area voted to combine them into a single place.
     From a historical and tourist point of view, Salem, or Old Salem, as it's called today, is the interesting and
unusual part of town.
    Salem was founded in the 1700s by the Moravians. They spoke German, and their community was religiously
based, with single men and single women living apart in separate dormitories. The Moravians greatly valued
women's work and brainpower. In fact, one of the nation's oldest boarding schools for young women-the
Moravians' Salem Academy founded in 1772-is still in operation.
    Over the years, Salem lost its Moravian character. That all changed, though, when a nonprofit group began
to rehabilitate the historic area These days Old Salem is what's called a living history museum, with exhibits,
music, and tours of 18th-century houses, taverns and Moravian dormitory buildings just seven blocks from the
tallest skyscraper in Winston-Salem.
    The historic community is booming again, Just as R J. Reynolds is taking in millions of dollars making
cigarettes across town, Old Salem is generating about $15 million a year in tourism revenue and donations.

1. From the passage we can know that _____.

A. Winston-Salem is the name of a city
B. Salem is home to the tobacco market
C. the city Winston-Salem has two names
D. Old Salem is the name of a tobacco brand

2. It can be inferred from Paragraph 3 that _____.

A. the two cities benefited each other
B. Salem developed faster than Winston
C. R J. Reynolds Company has moved into Salem
D. the combination meets the wishes of the people

3. The city Salem is special for its _____.

A. boarding school
B. lifestyle and tradition
C. respect for brainpower
D. religious belief

4. The underlined word "rehabilitate" in Paragraph 6 is closest in meaning to "_____".

A. reconstruct
B. evaluate
C. enlarge
D. decorate

5. What will probably be talked about in the following part?

A. Some other attractions in Winston-Salem.
B. How Winston makes profits from tourism.
C. Other examples of cities combined by two parts.
D. Something about the boarding school for women.

查看答案

题型：填空题

大叶性肺炎的病理改变分期，顺序正确的是()

A．红色肝样变期、灰色肝样变期、充血期、消散期

B．红色肝样变期、充血期、灰色肝样变期、消散期

C．灰色肝样变期、红色肝样变期、充血期、消散期

D．充血期、红色肝样变期、灰色肝样变期、消散期

E．灰色肝样变期、充血期、红色肝样变期、消散期

查看答案

题型：填空题

侵蚀性葡萄胎与绒毛膜癌最主要的区别点是______

A． * * 出血时间长短

B．距葡萄胎排空后时间长短

C．尿中HCG值高低

D．子宫大小程度不同

E．活组织镜下观察有无绒毛结构

查看答案

题型：填空题

下列单位符号中哪个是“千米/小时”的正确书写方式：（）

A、km/h

B、Km/h

C、km/H

D、kM/h

查看答案

更多题库