词汇选项
The system is based completely ______ renewable energy and is therefore autonomous.
A.in
B.on
C.with
D.of
【正确答案】B
【答案解析】本题考查的是固定短语的搭配，base on表示“基于，在…基础上”的意思。
词汇选项
The system is based completely ______ renewable energy and is therefore autonomous.
A.in
B.on
C.with
D.of
【正确答案】B
【答案解析】本题考查的是固定短语的搭配，base on表示“基于，在…基础上”的意思。
