Barbara McClintock, many scientists now believe that all of the information encoded in 50.000 to 100.000 of the different genes found in a human cell are contained in merely three percent of the cell's DNA.
50,000 to 100,000 of the different genes found in a human cell are contained in merely
50,000 to 100,000 of the human cell's different genes are contained in a mere
the 50,000 to 100,000 different genes found in human cells are contained in merely
50,000 to 100,000 of human cells' different genes is contained in merely
the 50,000 to 100,000 different genes found in a human cell is contained in a mere
答案是E,请各位大虾解析以下,
不明白 THE 和CELL ,CELLS作者: zyh79 时间: 2002-10-12 23:57
1。that从句后的主语是all of the information，所以后面的are错，a,b,c错。
2。three percent of the cell's DNA已经指出了是一个cell，故cells错作者: suse 时间: 2002-10-13 02:33
为什么 50,000 to 100,000 前面要加the?
还有,我觉得 a mere three percent of the cell's DNA.前的a 很别扭,应怎样理解呢?作者: Kilroy 时间: 2002-10-13 09:52
50,000 to 100,000 of the different 在这里是个形容词，修饰gene, 就象 red 修饰flower一样
a mere是个习惯用法，only before noun
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