下列血小板聚集诱导剂中,活化剂最强的是()
A.ADP
B.肾上腺素
C.凝血酶
D.TXA2
E.PAF
参考答案:E
When I returned to my hometown, I was nearly lost. Almost ______had changed.
A.nothing
B.anything
C.something
D.everything
有机溶剂对酶催化的影响主要有():
A.酶的活力
B.酶的稳定性
C.酶的催化特性
D.酶催化速度