用来分析影响指标变化的各个因素以及它们对指标各自的影响程序的分析法叫______。
A.因果分析法 B.因素分析法 C.工序图分析法 D.平衡分析法
参考答案:B
用所给词的适当形式填空。
1. It's senen o'colock, let's _____(have) supper.
2. We should _____(exercise) all the time.
3. When the teacher came in, We all stopped _____(talk).
4. Li Mei is the _____(good) student in our class.
5. She has _____(work) here for ten years.
6. Chinese teacher is coming! Let's stop_____(have) lessons .
油底壳的机油呈乳白色状表示()。
A.渗入水份
B.渗入汽油
C.渗入机油
D.机件严重磨损