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
|