单项选择题
A．routine
B．causal
C．additional
D．interesting
- A.routine
B.causal
C.additional
D.interesting
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问答题
性连锁的隐性基因导致红绿色盲。已知某平衡群体中有1／10的男性是色盲的。（1）女性中有多少是色盲的？（2）为什么色盲患者男性比女性多？多多少？（3）有多少婚配的家庭，他们的子、女各有一半是色盲？（4）有多少婚配的家庭，他们的孩子都是正常的？（5）在不平衡的群体中，红绿色盲基因在女性中的频率是0．2，在男性中的频率是0．6。经过一个世代的随机婚配，有多少女性后代是色盲？男性后代呢？（6）在（5）中，男性和女性后代的红绿色盲的等位基因频率是多少？ -
单项选择题
根据短文回答 51～65 题。 The Great Newspaper War Up until about 100 years ago, newspapers in the United States appealed only to the most serious readers. They used no illustrations and the articles were_______(1) Politics or business. Two men_______(2) that——Joseph Pulitzer of the New York World and William Randolph Hearst of the New York Morning Journal Pulitzer_______(3) the New York World in 1883. He changed it from a traditional newspaper into a very _______(4) one overnight (一夜之间). He (5) lots of illustrations and cartoons. And he told his reporters to write articles on_______ (6) crime or scandal they could find. And they did. One of them even pretended she was crazy and then she was _______(7) to a mental hospital. She then wrote a series of articles about the poor_______(8) of patients in those hospitals.In 1895, Hearst_______(9) to New York from California He wanted the New York Morning Journal to be more sensational (轰动的) and more exciting_______ (10) The New York World. He also wanted it to be cheaper, so he _______ (11) The price by a penny. Hearst attracted attention because his headlines were bigger than _______ (12). He often said, 'Big print makes big news.'Pulitzer and Hearst did anything they_______(13) to sell newspapers. For example, Hearst sent Frederic Remington, the famous illustrator (插呼画家), to _______ (14) Pictures of the Spanish-American War. When he got there, he told Hearst that no fighting was_______ (15). Hearst answered, 'You furnish (提供) the pictures. I'll furnish the war.' 第 51 题 请选择（1）处的最佳答案A．about B．in C．with D．of
A.
In
B.'
Pulitzer
C.'
D.about
E.in
F.with
G.of -
单项选择题
心肺脑复苏重点是（）
A.渗透性利尿
B.降低颅内压
C.减少疼痛应激
D.补充肠外营养
E.增加脑组织灌注
