下图为人体肺泡与血液气体交换示意图。下列正确的是
A．甲处血液鲜红，乙处血液暗红
B．乙处血液将汇集到肺静脉
C．乙处血液首先进入心脏的部位是右心房
D．心脏与甲之间具有防止血液倒流的静脉瓣
答案：B
题目分析：该图是肺循环的气体交换图，在肺循环中，从右心室射入肺动脉的静脉血，血液流经肺部毛细血管时，发生了肺泡与血液间的气体交换，血液中的二氧化碳进入肺泡，肺泡中的氧气进入血液，这样，通过气体交换后，血液由静脉血变成了动脉血，所以甲处是静脉血，乙处是动脉血，肺循环的路线为：右心室→肺动脉→肺部毛细血管→肺静脉→左心房，故选B。
阅读下面短文，根据所读内容在文后第76至第85小题的空格里填上适当的单词并将答案转写到答题卡上。 注意：每空仅填一个单词。 The ancient religions of the Greeks and Romans were based on myths. Originally the word meant “spoken words” or stories. Nowadays myths refer to tales without a kernel of truth, or fantasies. In nearly every civilization people tried to control their surroundings and the things happening around them to make them less threatening. In prehistoric cultures myths were used to explain natural phenomena. Ancient civilizations saw the earth as the goddess because of its fertility. Other phenomena like wind, lightning and thunder also were brought into connection with supernatural forces. The people felt themselves surrounded by gods and completely dependent. The Greek myths also originated in that manner, but had more functions. They also explained the beginning of the world and the origin of man. Furthermore, the myths kept alive the memories of the foundation of important cities as well as the heroic deeds of civilizations and individuals. The tales of heroes, human beings with often supernatural capacities, gave men examples of perfection. During the whole Classical Period people believed the myths, but over time they came to be taken less and less seriously. During the Greek Period myths were spread by word of mouth. The singing of mythical events was an important aspect of religious ritual. Many singers traveled around and sang the tales they heard on their way. The first collection of myths was the work of Homer. He was blind, and to survive he collected traditional stories and let them been written down by others. The books of his that we know are the Iliad and the Odyssey. The first author to write about the beginning of the world and its deities was Hesiod in the 18the century.
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Title: 小题1:_____ of Myths
ng natural phenomena, they also