For choice D, we found that information here, where it talks about nitric acid.

至于D选项，我们在这里发现了该信息，它谈论的是硝酸。

The ship had 25 tons of nitric acid and other chemicals on board, including tons of plastic pellets.

这艘船上有25吨的硝酸和其他化学物质，其中数吨的塑料颗粒。

Some people say it dates back to the use of nitric acid to determine the gold content of jewelry.

有些人说，这可以追溯硝酸来测定珠宝的黄金含量。

So do strong acids like hydrochloric, and sulfuric, and nitric acid.

酸、硫酸和硝酸等强酸也是如此。

I wanted some nitric acid and I had to repeat the word 'acid'several times.

我想要一些硝酸， 我不得不重复几次“酸” 这个词。

Salts do this. So do strong acids like hydrochloric, and sulfuric, and nitric acid.

可以做这一点。 酸、硫酸和硝酸等强酸也是如此。

They did this by submerging teeth into various types of acid, including hydrochloric acid, nitric acid, and sulphuric acid.

他们通过将牙齿浸入各种类型的酸中来做这一点， 酸、硝酸和硫酸。

He used nitrocellulose, a flammable solid, created by mixing cotton with nitric acid to create a hard, shiny, white sphere.

他了硝化纤维素， 一种易燃固体，通过将棉花与硝酸混合制成坚硬、闪亮的白色球体。

An arrow from " add nitric acid" to " shake vigorously" means that the acid addition has to happen before shaking.

从“添加硝酸”“剧烈摇晃”的箭头表示必须在摇晃之前添加酸。

Sulfuric and nitric acids are strong, but there are far stronger acids that can dissolve skin and cause horrific irreversible damage.

硫酸和硝酸是强酸，但还有更强的酸可以溶解皮肤并造成可怕的不可逆转的伤害。

And when you expose cellulose, like in wood pulp or cotton, to nitric acid, it forms cellulose nitrate -- which is highly flammable.

当你将纤维素（ 如木浆或棉花）暴露在硝酸中时， 它会形成高度易燃的硝酸纤维素。

Let's see how many correct choices we can find by scanning for key words that appear in the answers, like dust, sunlight, cold, dark, elements, crust, and nitric acid.

让我们看看我们可以通过浏览找寻选项中出现的关键词，例如灰尘、阳光、寒冷、黑暗、元素、地壳和硝酸，找多少正确选项。

The stuff was like nitric acid, and moreover, in swallowing it one had the sensation of being hit on the back of the head with a rubber club.

他的脸马上绯红起来，眼角里流出了泪水。

Both the given sentence and choice A talk about the large amounts of nitric acid and melted rock that were the result of the explosion and that started fires that destroyed plant life.

原句和选项A讲的都是爆炸产生的大量硝酸和熔岩，及其导致的毁灭植物的火灾。

To check that, Dr Andres and her team ground their bricks into powder and soaked them in water, shook them in special machines for days at a time, and even tried to dissolve them in nitric acid.

为了验证这一点，博士和她的科研小组将砖头打成粉末，浸泡在水里，在特殊装置里几天不停地摇晃，甚至在硝酸中溶解粉末。