循环水消泡剂可以用（）代替。
A.原油
B.豆油
C.硫酸
D.NaOH
参考答案：B
Miss Gao _____ this school since 1996.[ ]
A. has come to
B. came to
C. has taught
D. has been in
下列可使ESR增快的因素是（）
A.纤维蛋白原
B.白蛋白
C.卵磷脂
D.血小板
E.白细胞
