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【简答题】
染色体是由 和 两种物质组成，其中 是遗传物质，因此可以说染色体是遗传物质的载体。
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举一反三
【简答题】根据下列句子及所给单词的首字母，写出各单词的完全形式（每空限填一词） 小题1:If the sky is c , there’s no rain or cloud and you can see very far, 小题2:Jack is the tallest a the three students. 小题3:I wonder w it is going to rain this aftern...
【简答题】A new technology has the potential to change modern society in radical ways. There’s no question that self-driving vehicles could be an enormous benefit. The potential for safer cars means accident st...
【单选题】Directions: There are ten sentences in this section. Beneath each sentence there are four word s or phrases marked A, B, C and D. Choose one word or phrase that best completes the sentences. 1. “Of co...
A.
nervous
B.
fearful
C.
embarrassed
D.
anxious
【单选题】U.S. government scientists said there’s no recovery in Arctic sea ice after years of decline, despite claims of some __________.
A.
climate change doubters
B.
climate change skeptics
C.
climate change deniers
【单选题】根据《建设工程工程量清单计价规范》(GB50500--2013)的规定，分部分项工程量清单项目编码为010403002001，表示专业工程顺序码的是（ ）。
A.
04
B.
03
C.
002
D.
001
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