2. 外语
  3. Genes are the biological instructions______ in every cell.

Genes are the biological instructions______ in every cell.

admin2019-07-01  33
问题 Genes are the biological instructions______ in every cell.
选项 A、are found
B、found
C、find
D、finding
答案B
解析 Found introduces a passive-voice adjective phrase that modifies instructions.
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