下列着装和场合的搭配,哪一个属于比较失礼的行为?()
A、迪斯尼-T恤衫
B、朋友生日Party-单色连衣裙
C、银行大厅-牛仔服
D、晚间宴会-拖地长礼服
参考答案:C
DNA修复机制有多种,但所有这些机制都依赖于二倍体染色体上两套遗传信息的存在。()
If I ________ a policeman,I would catch the thief. [ ]
A. was
B. were
C. am
D. are