Question

【题目】The scientist has failed in the test many times, ______he never gives up.
A.but
B.so
C.or

Answer 1

【答案】A
【解析】句意：那位科学家在检测中已经失败了很多次了，但是他从不放弃。but但是；so所以；or或者；要不然；根据句意可知表示转折关系，故选A。