Sulfur 有味道 (与类似喝水的那题)版本 730 a kind of sulfur, also known as ...(harmful ) ,when is excess to the amount bahblah...will have bad smell... however, even much higher than the restricted mount ,sulfur will have no detremental effect on human. but the 某健康组织。still regulate it under the maximum level . how to explain the 组织的规定。
答案在俩里面选。 一,people dont like to drink smelly water, however ,drinking clean water will be benefitial to people's health. 2,one source of the sulfur is from the runoff of the agricultural soil, which contains other harmful chemists 我选第二个 ------------------------------------------------------------------------------------------------- 我觉得答案应该是第一个,跟之前的JJ一样。 |