【C9】A．constructiveB．negativeC．destructiveD．inactive

【C9】A．umberB．teamC．crowdD．staff

【C9】A．vitalB．casualC．fatalD．subtle

This rocket has sufficient power to blow a battleship to pieces.A) constructiveB) dest

The attitude of most Britain towards the war in Afghanistan is______.A．positiveB．negativeC

Russia is______ towards sanctions.A．positiveB．negativeC．ambiguousD．indifferent

番泻苷A中两个蒽酮母核的连接位置是（)A.C1—C1B.C2—C2C.C9—C9D.C10—C10E.C9—C10