凡参加工伤社会保险的企业,其职工患职业病后均能够享受工伤社会保险待遇。
参考答案:错
Where __________ you this afternoon? I didn't see you.[ ]
A. were
B. did
C. are
D. was
发明申请的单一性应该在检索现有技术之前确定。