上海服装厂去年计划生产服装2.4万套,实际生产了2.76万套.实际比计划增加百分之几?
(2.76-2.4)÷2.4,
=0.36÷2.4,
=15%;
答:实际比计划增加15%.
根据下列情景,选择最佳答案。
1. 晚上睡觉前你应跟爸爸妈妈说:[ ]
A. Good night.
B. Good afternoon.
C. Good evening.
2. 你想告诉别人你不喜欢吃鱼时,应该说:[ ]
A. I don't like fish.
B. I like fish.
C. I don't like chicken.
3. 你想知道你的朋友想干什么时,你可以问:[ ]
A. What are you doing?
B. What do you want to do?
C. Do you want to play ping-pong?
4. 你想知道你朋友的书在哪儿时,你可以问:[ ]
A. Where is your book?
B. What is it?
C. Is this your book?
5. 你想请好朋友喝饮料时,你可以说: [ ]
A. Would you like some tea?
B. Would you like some water?
C. Would you like some pop?
不是造成电动机振动过大的原因是()。
A.地脚螺栓松动
B.机泵轴不同心
C.电动机不平衡
D.通风不良