Cambridge Test3 Reading - 英檢

各位板友好~
請教一題Test3 第二篇

Paragraph 4:
Some drawbacks to this form of power generation have been noted. Perhaps the
biggest drawback at present is the high capital cost of initial construction
due mainly to the expense of the large pipeline used to pump water from 1,000
meters below the surface. Furthermore, the conversion of thermal to
electrical energy in the OTEC system works at very low efficiency, which
means that these plants will have to use a lot of water to generate practical
amounts for the power grid. For this reason, the net power output is reduced,
since a significant portion of the output must be used to pump water. There
are also potential ecological drawbacks, since the water discharges will
change the water temperature and disturb some marine habitats. This impact
could, however, be minimized if the water is discharged at greater depths.

Q22:
There are also potential ecological drawbacks, since the water discharges
will change the water temperature and disturb some marine habitats.

這句話最接近下列哪句的意思

A.Water outflow temperatures could upset local marine life.
B.Water discharges will disturb the ecology of the oceans.
C.The OTEC system has a tendency to upset marine environments
D.Outflows of water will affect the ocean temperature at great depths.

答案為A
想請問B.C為什麼不能選?
感覺都有這個系統會擾亂破壞水中生態的意思耶?


Q25 Summary題
A.The OTEC system can produce clean, renewable energy without harmful
environment effects.

由上面那段可以看到會對生態有影響
A卻不是答案 @@

麻煩大家解答了
感謝
※ 編輯: tbrsun 來自: 192.192.86.232 (10/29 14:20)