血源性肺脓肿最常见的致病菌是A．金黄色葡萄球菌 B．大肠埃希菌 C．肺炎克雷伯菌 D

—How about buying Sam a mobile phone? After all,  he isn't a boy any more.  

—I think it necessary,  for we sometimes want to make sure if he       home for dinner.  

A. will come

B. comes

C. has come

D. would come

—My name is Jim.

—Hi, Jim.________.[ ]

A. Goodbye

B. Nice to meet you

C. Thank you

D. I'm fine

小儿不显性失水较多，按体重计算约为成人的（）

A.4.5倍

B.4倍

C.3.5倍

D.3倍

E.2倍

急性颅内压增高的典型表现是

A．剧烈头痛，频繁呕吐

B．呈现Cushing征

C．意识障碍加深

D．去大脑强直发作

E．头颅X线平片示脑回压迹加深

损伤的全身症状为（）

A、体温升高

B、口渴

C、尿量减少

D、脉搏增快

E、呼吸加快