下图是某工厂某产品的年销售示意图(单位:万件)
在上半年销售量增加最多的年份是()。
A.1月份
B.3月份
C.4月份
D.5月份
参考答案:C
关于异氟烷的描述中,错误的是
A.MAC为1.15%
B.高浓度(>1MAC)时,收缩脑血管,降低颅内压
C.对冠脉有扩张作用
D.对支气管平滑肌有舒张作用
E.对肝肾功能无明显影响
.—The sales clerk in that company was but helpful.
—I couldn’t agree more. The last time I were there he treated me like dirt.
A.something
B.everything
C.nothing
D.anything