试举例说明偏振旋光性在日常在生活中的应用。

d—The womn biologist styed infric studying wildnimls for 13 yers before she returned. —Oh, der! She _______ lot of difficulties!my go through B．might go through C．ought to hve gone through D．must hve gone throughA．may go throughB．might go throughC．ought to have gone throughD．must have gone through

A、花朵
B、进天
C、昌歌
D、食间