44. (26787-!-item-!-188;#058&002971)
Scientists at the Los Alamos National Laboratory have succeeded for the first time in mining heat from the Earth's interior and producing energy on a commercial scale, enough for efficient generation of electricity and heating factories and homes.
(A) and producing energy on a commercial scale, enough for efficient generation of electricity and heating
(B) and producing enough energy on a commercial scale for electricity to be generated efficiently and to heat
(C) for energy production on a commercial scale, enough for generating electricity efficiently and to heat
(D) to produce energy on a commercial scale, enough for generating electricity efficiently and for heating
(E) to produce enough energy on a commercial scale for efficient generation of electricity and heat
the key is B,我有疑问，不 是说ＯＮＬＹ的位置不能动吗？
谢谢解答
好奇怪，ONLY在哪呀
我怎么没看到
A: and没有平行的对象
B: 同上
C: production不如produce表达的清楚；for generating 和 to heat 不平行
D: correct
E: generation 不如generating 表达的清晰；and heat应该和for平行而不是和to produce
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