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【单选题】
博物学家观察到，一群鸟中通常都有严格的等级制，地位高的鸟欺压地位低的鸟。头上羽毛颜色越深，胸脯羽毛条纹越粗，等级地位就越高，反之就低。博物学家还观察到，鸟的年龄越大，头上羽毛的颜色就越深，胸脯羽毛的条纹也就越粗。这说明鸟在一个群体中的地位是通过长期的共同生活逐渐确立起来的。以下哪项如果为真，能够最有力地削弱上述论证？（）A.
人们不能通过头上羽毛颜色或者胸脯羽毛条纹来识别白天鹅在群体中的地位，因为它们头上的羽毛颜色分不出深浅，胸脯羽毛没有条纹
B.
人们把一只年轻的低等鸟的头和胸脯羽毛高等鸟的颜色和条纹，并将它放在另一群同类鸟中，这只鸟在新的群体中受到了高等待遇
C.
如果鸟类世界中存在着严格的等级制，那么在一群鸟中，它们各自的地位不会是终身不变的
D.
如果鸟类世界中存在着严格的等级制，那么在一群鸟中，它们也会为提高各自的地位而发生争斗
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【简答题】请提交10月24日作业
【简答题】12【单选题】肺表面活性物质的主要性质和作用
【单选题】The structure of “It was early December 2003, my first season as a Salvation Army bell ringer, when I was confronted with the question. ” is
A.
The subject is “It” and the predicate part is an abstract concept. “my first season as a … ringer” is an appositive of “early December 2003”. “when I was confronted with the question” is an attributive clause of “early December 2003”.
B.
The subject is “It” and the predicate part is “is”. “my first season as a… ringer” is an appositive of “early December 2003”. “when I was confronted with the question” is an attributive clause of “early December 2003”.
C.
The subject is “It” and the predicate part is an abstract concept. “my first season as a … ringer” is an appositive clause of “early December 2003”. “when I was confronted with the question” is an attributive clause of “early December 2003”.
D.
The subject is “It” and the predicate part is an abstract concept. “my first season as a … ringer” is an appositive of “early December 2003”. “when I was confronted with the question” is an adverbial clause of “early December 2003”.
【判断题】I t is a question when he will come back. There is an attributive clause in the sentence.
A.
正确
B.
错误
【单选题】When attributive is a simple word or phrase, the attributive structures are ______ in Chinese and English.
A.
similar
B.
different
C.
various
D.
distinct
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