2016卫生类职称英语考试重点词汇：upgrade

解释：

n.向上的斜坡

vt.提升；使（机器、计算机系统等）升级；提高（设施、服务等的）档次；提高（飞机乘客、旅馆住客等）的待遇

upgrade语法：

n.名词。vt.动词，第三人称单数：upgrades；过去式：upgraded；过去分词：upgraded；现在分词：upgrading

upgrade同义词：

upgrade，improve，make better，better，perfect

upgrade造句：

He was upgraded to security guard.他被擢升为保安。

upgrade考试真题：

Medical facilities are being upgraded.

A.expanded B.repaired

C.improved D.transferred

答案：A