由维生素B1参与形成的辅酶是()。
A.TPP
B.FAD
C.FMN
D.辅酶I
参考答案:A
-- I don’t know _____________. -- In about ten minutes, I think.
A.when we’ll go back
B.where we’ll go back
C.how often we’ll have a meeting
D.how long we’ll stay here
坡屋顶高垮比是1:8,那么其坡度是______。
A.15%
B.20%
C.25%
D.30%