如图为某化学反应的微观示意图，图中“●”表示硫原子，“○”表示氧原子．下列说法中错误的是（   ）

22．Somalia pirates, mainly made up of four groups,_______________,Puntland Group, National. Volunteer Coast Guad, Merkah and Somalia Marine, are currently active in the Somali waters.

关于我国能源的利用和能源的节约，下列说法中正确的是（　　）

（2014•丹东）下列关于分子和原子的说法正确的是（　　）

When asked about his future plans, the president expressed the desire to step aside ________ the younger men.