Question

--- This history book is of great value.
--- Exactly. ____________ can be enjoyed from it ____________ you have a deep understanding of it, however.

A．Nothing; unless

B．Few; till

C．Something; until

D．Little; since

Answer 1

A

解析試題分析：句意：--這本歷史書很有價值。--的確如此。除非你對它有一個很深刻的理解，否則就不能很好的理解它。分析結合句意理解，只有運用連詞unless適合。故選A
考點：考查連詞的用法。