殷璠的论诗主张主要体现在他的()
A.《箧中集序》
B.《极玄集序》
C.《中兴间气集序》
D.《河岳英灵集序》
参考答案:D
塞纳河自 向 注入 。
Since no one really knows what effects the GM food might have _____ us humans, many countries think that they should be cautious _____ this new technology.
A.about; with
B.on; to
C.in; to
D.on; with