—John is a hardworking student．

---You’re fight．He         play computer games，but he doesn’t do it now．

A．always

B．has never

C．used to

D．seems to

金黄色葡萄球菌肺炎合并脓胸的临床表现特点是()

A．感染中毒症状严重

B．高热持续不退

C．严重呼吸困难与缺氧

D．两肺部密集细小湿啰音

E．呼吸音减弱或消失