单项选择题
A.15% B.17% C.19% D.20%
A.20兆瓦;0.4 B.30兆瓦;0.5 C.20兆瓦;0.5 D.30兆瓦;0.4
A.2020 B.2030 C.2040 D.2050
A.10兆瓦;0.4;0.6 B.10兆瓦;0.3;0.5 C.20兆瓦;0.3;0.5 D.20兆瓦;0.4;0.6
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