OG RC Hard一道三选题

HardyNiborUID: 3461489

    For hot desert locations with access to seawater, a new greenhouse design generates
freshwater and cool air. Oriented to the prevailing wind, the front wall of perforated
cardboard, moistened and cooled by a trickle of seawater pumped in, cools and moistens
hot air blowing in. This cool, humidified air accelerates plant growth; little water
evaporates from leaves. Though greenhouses normally capture the heat of sunlight,
a double-layered roof, the inner layer coated to reflect infrared light outward, allows
visible sunlight in but traps solar heat between the two layers. This heated air, drawn
down from the roof, then mixes with the greenhouse air as it reaches a second
seawater-moistened cardboard wall at the back of the greenhouse. There the air
absorbs more moisture, which then condenses on a metal wall cooled by seawater, and
thus distilled water for irrigating the plants collects.

4. It can be inferred that the greenhouse roof is designed to allow for which of the
following?
A The avoidance of intense solar heat inside the greenhouse
B The entry of sunlight into the greenhouse to make the plants grow
C The mixture of heated air with greenhouse air to enhance the collection of
    moisture

解析说，Choice B is correct: the coating on the inner layer of the roof allows visible sunlight
into the greenhouse.

没有讲B项后面的to make the plants grow，而原文确实没说啊

请多指教，谢谢

HardyNiborUID: 3461489

terrylazioUID: 3034443

This cool, humidified air accelerates plant growth

HardyNiborUID: 3461489

terrylazio 发表于 2013-9-8 13:15
This cool, humidified air accelerates plant growth

空气帮助成长跟阳光帮助成长不好随便混吧

terrylazioUID: 3034443

HardyNibor 发表于 2013-9-8 13:49
空气帮助成长跟阳光帮助成长不好随便混吧

湿空气来自阳光

Leon-WangUID: 2772364

我个人觉得这种题目碰到了，我只能画图了，不然怎么也记不住或者想不出那个过程。

cnfgreUID: 3470588

我也觉得原文没说……