题干
Clothing made of man-made fibers has certain advantages over _______ made of natural fibers like cotton, wool or silk.
A：the one
B：one
C：that
D：what
答案(点此获取答案解析）
C
2HI(g) ΔH<0，达到平衡HI的体积分数w(HI)随时间变化如图(Ⅰ)所示。若改变反应条件，w(HI)的变化曲线如图(Ⅱ)所示，则改变的条件可能是