下列导致涂料产生咬底现象的是()。
A.涂面漆后,底涂层被咬起脱离的现象
B.涂料喷涂时,涂膜产生像桔皮的现象
C.涂料表面有流淌的痕迹
D.喷涂涂膜过厚
参考答案:A
—Mary broke up with me!
—You_ _have forgotten about the Valentine's Day.
A.shouldn't
B.couldn't
C.needn't
D.mustn't
有抗胆碱作用和阻滞α受体的药物是:
A.美西律
B.奎尼丁
C.胺碘酮
D.普萘洛尔
E.利多卡因