[单选题]心内兴奋传导的顺序是 ( )
正确答案 :E
窦房结→心房肌→房室交界→房室束和左右束支→浦肯野纤维→心室肌
[单选题]根据以下材料,回答 40~43 问题。During a television play the sound man must be ready to make every sound as it is needed.Sound effects are of three kinds:real,imitated and recorded.
正确答案 :F
makes fl TV play more lifelike
解析:从文章中很容易就能判断出答案。
[单选题]According to the passage, the group with the highest AIDS rate is_________ .
正确答案 :D
the black American women
解析:细节题。根据文章第三段“…half of the more h fl l mi lion Americans living with HIV are black.“(……50多万以上的HIV携带者是黑人。)及“For women,the situation is even worse.The rate of diagnosis for African-American women is 23 times as high as that for their white counterpart.”(而妇女的情况更糟。美籍非洲妇女的患病率是同类白人女性的23倍。)所以正确答案是D。
[单选题]我国解决民族问题的基本原则是( )
正确答案 :D
民族平等、民族团结和各民族共同繁荣
[单选题]Schools were created_________ to prepare children for socialization.
正确答案 :C
in part
解析:in the part和on the part不是词组;in part(副词词组),意思是“部分地”as a part(副词词组),意思是“作为一个部分”。题干的意思是:“学校被创立部分目的是为孩子们进入社会做准备。”
[单选题]The chair looks rather hard, but in fact it is very comfortable to ______.
正确答案 :B
sit on
[单选题]物种频度从高到低分A、B、C、D和E五级,按饶基耶尔频度定律,不正确的是( )
正确答案 :D
B、C、D级的比例增高,群落中种的分布变均匀
[单选题]关于排尿反射的叙述,下列选项不正确的是 ( )
正确答案 :C
反射过程存在负反馈控制
[单选题]下列各项组合中,能准确判断酸中毒性质严重程度和代偿情况的是( )
正确答案 :B
动脉血pH和HCO3-
[单选题]The Voice of America began during the World War II when Germany was broadcasting a radio program to get international (21) . American officials believed they should (22) the German broadcast with words that they thought were the facts of world (23) . The first VOA news report began with these words in (24) : "The (25) may be good or bad, but we shall tell you the truth." Within a week, other VOA (26) were broadcasting in Italian, French and English.After the World war II (27) in 1945, some Americans felt VOA's (28) had to be changed, (29) the Soviet Union (苏联)became the enemy of America. They wanted to reach Soviet listeners. Then VOA began broadcasting in Russian.
正确答案 :E
support
解析:21.答案为C 本题为词汇题,要求正确选择词义。A商务,业务,B文化,C支持,D信息。美国之音VOA的广播开始于第二次世界大战期间,与此同时德国正在利用无线电广播以获得国际(舆论)的支持。
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