辛凉解表药最主要作用是()
A.宣肺气
B.清头目
C.透麻疹
D.散风热
参考答案:D
—Where _____ the flowers?
—They are on the floor. [ ]
A. is
B. be
C. am
D. are
临床上采集胸水标本时,如果不能及时送检,为防止标本凝固,应在标本中加入何种物质()
A.1NNaOH
B.20%HCl
C.4g/L柠檬酸钠
D.0.9%NaCl
E.灭菌蒸馏水