血清促胃液素减少常见于下列哪种疾病
A.卓-艾综合征B.慢性浅表性胃炎C.胃溃疡D.慢性萎缩性胃炎E.十二指肠壶腹溃疡
参考答案:D
________ is another way of saying "Can I help you"?[ ]
A. What can I do for you
B. How can I help you
C. What's your favorite
D. I want to help you
A.用交流电压表测该电源电压时,示数是6V
B.用交流电压表测该电源电压时,示数是6V
C.用此电源给电磁打点计时器供电时,打点的时间间隔为0.01s
D.把标有“6V 3W”的小灯泡接在该电源上时,小灯泡将被烧毁