ÜDS 2006 Mart İngilizce Fen Bilimleri Soru 25

SORU:

Soruda verilen cümleyi uygunvşekilde tamamlayan ifadeyi bulunuz.

In biology, isolating particular enzymes is a tedious process of trial and error ----.

A) though silicon is not the best choice of material
B) if several hundred steps were involved
C) which involves many different experiments
D) until other problems could be eliminated
E) as lab experiments may prove unnecessary

Çözüm:

A) though silicon is not the best choice of material
B) if several hundred steps were involved
C) which involves many different experiments
D) until other problems could be eliminated
E) as lab experiments may prove unnecessary