问题
选择题
In making a scientific experiment, one should not be _____ by temporary setbacks but should stick to doing it hopefully.
A．cast down
B．put away
C．taken in
D．put out
答案
答案：A
题目分析：考查动词短语辨析。句意：在做科学实验中，一个人不应该因暂时的困难而沮丧，而是应该满怀希望坚持到底。所以答案选A、沮丧，难过。B、放好，抛弃，储存；C、吸收，明白，收容；D、熄灭，出版。