猩红热的主要病理变化有:()
A.炎症性病变
B.中毒性病变
C.变态反应性病变
D.中毒性病变及炎症性病变
E.炎症性病变、中毒性病变及炎症性病变
参考答案:E
商业银行利用衍生品可以完全对冲其所面临的市场风险,而且不会产生新的风险。()
A great fire in our town last night and many people became homeless.
A.broke through B.broke off C.broke out D.broke down