题干
It wasn't easy having my friends talk about their freshman years____ I wasn't a part of.
A：whom
B：when
C：that
D：what
答案(点此获取答案解析）
C
It wasn't easy having my friends talk about their freshman years____ I wasn't a part of.
A：whom
B：when
C：that
D：what
J·mol-1，下列有关该反应的叙述正确的是
