44. (26787-!-item-!-188;#058&002971[BryanZhou1] )
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
[BryanZhou1]如何区分平行关系呢？
(E) to produce enough energy on a commercial scale for efficient generation of electricity and heat
to是可以省略的，如果不省略，则E
Scientists have succeeded for the first time in mining heat from the Earth's interior to produce enough energy on a commercial scale for efficient generation of electricity and
(to)heat factories and homes.科学家第一次成功地采集地人来produce...来heat工厂和家庭。逻辑意思不对，科学家是第一次...produce,但不是第一次heat 工厂和家庭
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