磺胺类药物抑制作用的靶酶是
A．叶酸合成酶B．二氢叶酸还原酶C．胆碱酯酶D．巯基酶E．碳酸酐酶
参考答案：A
—Thanks for listening to my problem and giving me your advice, Amy.
—_________. That’s what friends are for.
A．My pleasure
B．With pleasure
C．Never mind
D．It’s nice of you, thank you
纤维性很强的中药细粉制粒时，应选用的黏合剂是
A．淀粉浆
B．糖浆
C．水
D．明胶浆
E．不同浓度的乙醇
