不属于醇酸树脂漆的分类是()。
A.外用醇酸树脂漆
B.通用醇酸树脂漆
C.水溶性醇酸树脂漆
D.清漆
参考答案:D
I would rather _____ English than ______ words.
A.reading,write
B.read,writing
C.read;write
D.reading;writing
序贯试验的最大优点是()
A.不需对照
B.节省人力、物力
C.不需随机
D.慢性病患者试验周期短
E.适合重症患者