右图是一个生物学家,他曾提出过两个闻名的原则,就是“用进废退”和“获得性遗传”。

题型:选择题

问题:

右图是一个生物学家,他曾提出过两个闻名的原则,就是“用进废退”和“获得性遗传”。他的一生,可以说是在贫穷与冷漠中度过的,尤其是晚年的境遇很凄凉。直到1909年,在人们纪念他的名著《动物学哲学》出版 100周年时,巴黎植物园向各界募捐,才算为他建立了一块纪念碑。碑上镌刻着他女儿的话:“我的父亲,后代将要羡慕您,他们将要替您报仇雪恨!”这位科学家是

A.胡克

B.拉马克

C.施莱登

D.达尔文

考点:爱因斯坦为人类和平进步而斗争李时珍的从医之路李四光为中国地质力学奠基居里夫人的科学贡献
题型:选择题

0.049×45保留两位小数是2.21______.

题型:选择题

我国门静脉高压症的主要病因是()

A.肝硬化

B.门静脉主干畸形

C.门静脉血栓

D.门静脉海绵样变性

E.布-加综合征

题型:选择题

下列有关弥漫性毒性甲状腺肿病变的描述错误的是()

A.间质血管丰富、充血

B.滤泡增大,腔内胶质浓厚

C.甲状腺滤泡增生呈 * * 状

D.淋巴细胞浸润可有滤泡形成

E.可有胸腺、脾增大,心脏肥大

题型:选择题

Part 4


Questions 26-45


·Read the following passage and decide which answer best fits each space.
·Forquestions26-45, markoneletterA, B, C or D on the Answer Sheet.
Both (26) and zoology are parts of a more general field of science, biology. The two are studies of (27) things, which share certain characteristics, (28) they are plants or animals. Botany deals with plants, whose organisms that can (29) their own food by the use of sunlight. Zoology on (30) hand, deals with animals, those organisms that cannot manufacture their own food and are thus dependent (31) plants for their food.
(32) plants and animals share many abilities, the extent (33) which plants can exercise some of those abilities is (34) . For example, both plants and animals need food, water, and warmth for growth, (35) plants can move to (36) those needs only by the slow extraction of their leaves and roots, while animals can move relatively (37) distances in relatively little time. When an animal is hurt with needle, the animal will (38) the part of the body (39) . This ability to draw back (40) pain or irritation, called irritability, is found only to a very limited extent in plants.
If plants (41) the same (42) as animals, animals would have had a more difficult time finding food. If animals were as limited as plants, they might (43) a means of manufacturing their own food, as plants do now. The world would be a very different place (44) it is if the characteristics of plants and animals were (45)

A.in

B.to

C.with

D.on

题型:选择题

国债偿债率是指当年到期还本付息的国债总额占( )的比例。

A.当年财政收入
B.历年财政收入
C.历年财政支出
D.当年财政支出

更多题库