动物性干制原料油发过程中,低温油焐制阶段的油温应控制在()。
A.70℃左右
B.110℃左右
C.150℃左右
D.190℃左右
参考答案:B
During the after-school activities, some students are playing __________ on the playground while the rest __________ doing some homework in the classrooms.[ ]
A. happy, are
B. happily, is
C. happily, are
D. happy, is
PSA的基本特点是基于事故场景进行风险研究。()