We cannot understand a disease ________ we understand the person who has the disease.[ ]A. unlessB.

题目简介

We cannot understand a disease ________ we understand the person who has the disease.[ ]A. unlessB.

题目详情

We cannot understand a disease ________ we understand the person who has the disease.
[     ]
A. unless  
B. even though
C. on condition that  
D. while
题型:单选题难度:中档来源:同步题

答案

A

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