(8 分)读甲、乙两图,回答下列问题。 (1)说出甲地的风向。比较甲、乙两地风

题型:综合

问题:

(8 分)读甲、乙两图,回答下列问题。

(1)说出甲地的风向。比较甲、乙两地风力大小,并说明原因。(3分)

(2)说出图甲中天气系统A到达北京时的天气状况。(2分)

(3)判断图乙中所示天气系统的类型。(1分)

(4)图甲中的A和图乙中的天气系统强烈发展可能成为自然灾害,根据所学知识完成下表。(2分)

 图甲中的A天气系统图乙所示天气系统
自然灾害名称  

考点:等值线地图的判读及综合应用
题型:综合

根据划线的字填反义词,使其成为成语。 

争( )斗    声(     )击西   因(     )果    若若(     )   去( )存    弄(     )成

题型:综合

How did the Olympic Games start In ancient Greece athletic festivals were very important and had p ________ (1). Originally the Festival was held in honour of .Zeus, the supreme god in Greek Mythology. Eventually the Olympian athletic festival had lost its ________ (2) and became an international event. No one knows exactly ________ (3) the Olympic Games go, but some scholars recorded date from 776 B.C.According to some scholars, at first the only Olympic event was ________ (4), called a stadium and that was the only event until 724 B.C. After that, other ________ (5) were added and sixteen years later in ________ (6) the pentathlon was added and wrestling became part of the games. This pentathlon was a five-event match which ________ (7) running, wrestling, leaping, throwing the discus, and hurling the javelin.The games were held ________ (8) and after an uninterrupted history of 1170 years, the games ________ (9) in A.D. 394, the Christian era, because of their pagan origin.It was over ________ (10) before there was another such international athletics gathering. In 1896, the first of the modern ________ (11) opened in Athens, Greece.Nowadays, the Games are held in different countries ________ (12). The host country provides vast facilities such as stadiums and ________ (13).Many more sports are represented, including the very celebrated event: ________ (14).The Olympics start with the arrival in the stadium of a torch, ________ (15) on Mount Olympus by the sun’s rays. The torch is carried by ________ (16) to the stadium. The Olympic flame symbolizes the ________ (17) of the ancient Greek athletic ideals, and it burns throughout the Games until ________ (18). The well-known Olympic flag, however, is ________ (19): the five interlocking rings symbolize the uniting of all five continents ________ (20).

题型:综合

DNA合成中拓扑异构酶的功能是

A.解开DNA双链成为单链(单股)
B.稳定DNA的单链结构
C.解开DNA超螺旋成松弛的双螺旋结构
D.使冈崎片段连成长链DNA.

题型:综合

离心式水泵铭牌上的扬程是指水泵在()下最佳工作状况时的总扬程。

A.额定流量

B.额定功率

C.额定效率

D.额定转速

题型:综合

数据模型可分为概念数据模型和结构数据模型,层次模型是 【14】 数据模型。

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