第1题:
脂肪酸(fatty acid)
第2题:
灰色胡敏酸 grey humic acid
第3题:
50
20
40
45
35
第4题:
are harmful to children that contain violent imagery
containing violent imagery are harmful to children
that contain violent imagery that harms children
containing violent imagery that are harmful to children
harmful to children containing violent imagery
第5题:
第6题:
boric acid solution
water
baking soda solution
ammonia
第7题:
转移核糖核酸(tRNA, transfer ribonucleic acid)
第8题:
酸洗除垢acid descaling
第9题:
hydrogen chloride
calcium chloride
sulfuric acid
muriatic acid
第10题:
第11题:
It causes excessive smoking and soot at low firing rates
It doesn’t readily burn when combined with oxygen
It clogs fuel oil strainers more often
It forms a corrosive acid when mixed with water or water vapor