在盐酸普鲁卡因注射液处方中,下列物质的作用是
注射用水()
A.溶剂
B.pH调节剂
C.渗透压调节剂
D.抗氧剂
E.抑菌剂
参考答案:A
When you are dressed in the latest style, dancing to the most fashionable music after watching the latest film, you feel great,______?
A.aren’t you
B.don’t you
C.do you
D.are you
简述综合自动化变电站优越性?