眼膏剂常用基质是黄凡士林、液状石蜡、羊毛脂组成的混合物,各成分比例一般为
A.1:8:1
B.1:1:8
C.8:1:1
D.4:1:2
E.2:1:2
参考答案:C
— I wonder if I could possibly use your car for tonight.
— ________.I'm not using it anyhow.[ ]
A. Sure, go ahead
B. I don't know
C. Yes, indeed
D. I don't care
急性心肌梗死发作后MB开始升高的时间为()
A.1小时
B.2~4小时
C.4~8小时
D.8~12小时
E.12~16小时