Loulan city is not at all a traveler who has never ...

Loulan city is not at all a traveler who has never seen the desert before can imagine. A．that B．what C．which D．where

B



试题分析：考查名词性从句。在本句中what引导表语从句，what a traveler who has never seen the desert before can imagine并作为动词imagine的宾语。That引导名词性从句，在句中不充当任何成分，只起连接作用；which指特定范围之内的哪一个；where在名词性从句中做状语。What引导名词性从句做主语，宾语和表语。
点评：That引导名词性从句，在句中不充当任何成分，只起连接作用；which指特定范围之内的哪一个；where在名词性从句中做状语。What引导名词性从句做主语，宾语和表语。

这是一个名词性从句（what a traveler can expect作名词)，其中有一个定语从句（a traveler who has never seen the desert before ).而that和which不能直接用于名词性从句，which前需接in等引导。