Another drug that has helped improve people’s health is penicillin, _________ is _________ by many _________ one of the most important medicines.

A．which, considered, being

B．that, considering, been

C．that, to consider, being

D．which, considered, to be

下列程序段的执行结果是______。 option base 1 private eommand1_c1ick () Dim A(10) Dim E(5) For i = 1 To 10 A(i) = i Next i For j = 1 To 5 B(j) = j * 20 Next j A(5) = B(2) Print “A(5)=”; A(5) End sub

A．A(5)=20

B．A(5)=30

C．A(5)=40

D．A(5)=50