宋初最早起来反对五代体,并以恢复韩愈、柳宗元古文传统为己任的人是()。
A.柳开
B.田锡
C.穆修
D.王禹偁
参考答案:A
In spite of these unexpected difficulties, the Chinese scientists ________ to carry out their experiments
on the lonely island. [ ]
A. threatened
B. managed
C. offered
D. hesitated
()的功用是防止或延缓高分子材料的老化变质。
A、增塑剂
B、稳定剂
C、树脂
D、添加剂