临床上用于轻度抑郁及小儿遗尿症的药物是（）
A.咖啡因
B.哌甲酯
C.尼可刹米
D.贝美格
E.二甲弗林
参考答案：B
It is the education _________ he received when studying abroad _________ has made him such an excellent manager.
A．that; that
B．which; which
C．that; which
D．where; that
患者男性，64岁。腹痛伴频繁呕吐3天，以肠梗阻收入院，血［Na+］135mmol/L，血［K］3.5mmol/L，BP80/60mmHg，治疗应首先采取（）。
A.纠正酸中毒
B.纠正低血钾
C.纠正低血钠
D.急诊手术，解除肠梗阻
E.纠正低血容量
