幽门梗阻患者术前应做的准备有
A．禁食，胃肠减压
B．纠正水、电解质失调和低蛋白血症
C．应用广谱抗生素
D．温盐水洗胃
参考答案：A,B,D
下列哪项不是心血亏虚的临床表现( )
A．视物昏花
B．脉细涩
C．怔忡
D．健忘
She’s______ to be a teacher when she______ her studies.[ ]
A. goes, finishes
B. going, finishes
C. go, finish
D. going, will finish
