铅抑制血红素合成酶后,红细胞内锌离子被络合于原卟啉Ⅸ形成()
A.FEP
B.ALA
C.ALAS
D.ZPP
E.ALAD
参考答案:D
下列关于对象的加锁说法不正确的是( )。
A.STORE 1 TO X,Y
B.STORE 1,2 TO X
C.STORE 1 TO X Y
D.STORE 1、2 TO X
—Will you play basketball against Class 3 tomorrow?
—Yes. _______ it snows. [ ]
A. If
B. Until
C. When
D. Unless