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Question: The backbone of sugar molecules is ___ A. Sulfur B. Oxygen C. Carbon D. Nitrogen
asked
Feb 22, 2020
Biology
middle-school
1
answer
3
votes
73.4k
views
Mi hermana ________ en los Estados Unidos durante dos años. A. vivieron B. vivimos C. viviste D. vivió
asked
Jun 2, 2019
Spanish
high-school
2
answers
4
votes
234k
views
Help please Help please
asked
Apr 17, 2019
Mathematics
middle-school
1
answer
2
votes
107k
views
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