五四爱国运动爆发于()年,地点是北京,后转移到上海。
参考答案:1919
关于初乳,不恰当的说法为()。
A.从出生至产后10天的乳汁
B.质稠色黄
C.从出生至产后4-5天的乳汁
D.含脂肪少
E.球蛋白多
You should get down to your study from now on.Please________what is of great importance for
your future development. [ ]
A. concentrate on
B. depend on
C. put on
D. take on