家庭美德是每个公民在家庭生活中应该遵循的(),涵盖了夫妻、长幼、邻里之间的关系。
参考答案:行为准则
Having heard my answer, the master nodded _______ satisfaction, “I’m quite satisfied _____you.”[ ]
A. with; with
B. on; by
C. in; to
D. in; of
氨水焦油分离时,焦油液面应控制在()米左右。
A、1.6
B、1.0
C、0.5