2. The sea serves the needs of man because ______. A. in provides man with food B. it offers oil to man C. it supplies man with minerals D. all of the above

2. The sea serves the needs of man because ______.
A. in provides man with food
B. it offers oil to man
C. it supplies man with minerals
D. all of the above

出自：河北建筑工程学院-建筑工程技术（专科）-大学英语1

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