[单选题]
1.5 The topic of this passage is ________.(1分)
A) tH.E..sun’s H.uG.E..A.mounts oF..E.nE.rG.y(
B) tH.E..sun’s E.nE.rG.y only to tH.E..E.A.rtH.(
C) nuC.lE.A.r F.usion oC.C.urrinG..A.t tH.E..sun’s C.orE.(
D) r
EproD.uC.inG..nuC.lE.A.r
Fusion on tH.E..E.A.rtH..
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