[請益] 英文閱讀題目2題
文章段落:
The bulk of our electricity is produced by conventional energy converters
that are based on mechanical, indirect conversion of energy. The chemical
energy of our fossil fuels is first converted into heat energy. The heat
energy is then converted by turbines into mechanical energy which, in turn,
produces electricity by generators. The efficiency of these systems is
low-the step involving the generation of mechanical energy results in a 70
percent loss of energy. As a consequence of this, for many years scientists
and engineers have been seeking ways to convert energy directly into
electricity without the use of an intermediate mechanical energy converter.
Q1. It can be inferred from the passage that less energy would be lost in the
production of energy if the intermediate mechanical converter were
A) introduced before heat conversion
B) mixed with various chemicals in the system
C) replaced with larger turbines
D) deleted from the system
Q2. According to the passage, the efficiency of systems that prodece
elctricity through generators
A) varies considerably
B) cannot be measured
C) is quite minimal
D) seems sufficient
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