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题库 / Prep2007E1-SC-44
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.
and producing energy on a commercial scale, enough for efficient generation of electricity and heating
and producing enough energy on a commercial scale for electricity to be generated efficiently and to heat
for energy production on a commercial scale, enough for generating electricity efficiently and to heat
to produce energy on a commercial scale, enough for generating electricity efficiently and for heating
to produce enough energy on a commercial scale for efficient generation of electricity and heat
🐎一下：
enough的用法：
sth is big enough to do sth, 足够/而能;
sth is enough to do sth/for doing sth，某物对于做……是足够的
B/D：producing enough energy和mining heat 是并列关系还是有逻辑关系，答案是有逻辑关系更优，开采热量以生产足够的能源
在进行到选项二选一后，快速找到选项间差异的能力对于提高答题准确率还是很重要的。
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