鼻出血的原因大致可分为()因素和()因素两类。
参考答案:局部;全身
原发性醛固酮增多症首选治疗药物是()。
A.美托洛尔
B.硝苯地平
C.硝酸甘油
D.特拉唑嗪
E.安体舒通
29. It is known to us that doing eye exercises ________ our eyes, and that is to say, our eyes can ________ doing eye exercises.
A.benefits; benefit from
B.benefits to; benefit
C.benefits from; benefit
D.benefits; be benfited from