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【单选题】
1950年奥地利美国生物化学家查戈夫研究不同物种核酸中碱基的分布规律，提出了查戈夫法则。这个法则主要内容是（ ）。A.
A≠T, C≠G, A+T=C+G
B.
A=T, C=G, A+T=C+G
C.
A=T, C=G, A+T≠C+G
D.
A ≠ T, C ≠ G, A+T≠C+G
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举一反三
【简答题】轮式汽车行驶系统一般由车架、车桥、车轮和____组成。
【单选题】Which of the following is TRUE of the large corporation?
A.
They only employ graduate students in colleges.
B.
They can offer many job opportunities.
C.
They have many sub-companies throughout the country.
D.
Their requirements are very high.
【简答题】Which industry tends to employ high percentage of women? [A] Construction. [B] Manufacturing. [C] Health care. [D] Farming.
【单选题】I have omitted many things which ______ a place in the hook.
A.
reserved
B.
deserved
C.
preserved
D.
observed
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