预防减压病的关键措施是()
A.注意合理减压
B.加强医疗保健
C.减轻劳动强度
D.保暖防冻
E.加强营养
参考答案:A
The generative linguist is interested not only in ______ language but also in explaining language.
A.teaching
B.describing
C.using
D.understanding
涂料的备案申请在涂料进口至少2个月前向备案机构提出。 ( )