关于幽门梗阻不正确的是（）
A.饭后即引起呕吐
B.可出现脱水、酸碱失衡
C.呕吐后患者较轻松
D.呕吐含酸酵宿食
E.查体胃区有振水音
参考答案：A
用括号内单词的适当形式填空。
1. What are your ______(lesson) today?
2. When is your ______(China) lesson?
3. They ______(not do) their homework.
4. Would you like ______(go)with me?
5. Sunday is the ______ (one) day in a week.
6. Lucy and Lily are ______(English).
在汽车空调系统中，当过热开关闭路时，会直接使（）断路。
A.热力熔断器
B.电磁离合器
C.安全电路
D.鼓风电动机
