施工现场用电系统中,N线的绝缘色应是()。
A.黑色
B.白色
C.淡蓝色
D.棕色
参考答案:C
按要求改写句子。
1.我认识了一位举止特别的青年。(缩句) 。
2.青年把金鱼的每个部位一丝不苟地画了下来。(改为“被”字句)
3.小女孩说:“我喜欢叔叔画的金鱼。”(改为第三人称转述)
You ______ last week if you were really serious about your work.
a. ought to come b. ought to be coming c. ought have come d. ought to have come