What does the abbreviation VHF stand for?()
A. Vessel's Hoisting Flag
B. Very High Safety
C. Vessel's Homing Frequency
D. Very High Frequency
患者,男,49岁,为查找癌细胞需留痰标本,固定标本的溶液宜选用()。
A. 40%甲醇
B. 95%乙醇
C. 5%苯酚
D. 40%甲醛
E. 稀盐酸
集团经理呼入10086要求查询名下集团客户的话费余额,是否可以提供查询?