问题
单项选择题
关于坯料的加热的方法正确的是（）。
A.主要有火焰加热、感应电加热和少无氧加热
B.火焰加热的加热速度快质量易控制
C.感应电加热文都不易控制
D.少无氧加热增加了钢材的氧化和脱碳
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
关于坯料的加热的方法正确的是（）。
A.主要有火焰加热、感应电加热和少无氧加热
B.火焰加热的加热速度快质量易控制
C.感应电加热文都不易控制
D.少无氧加热增加了钢材的氧化和脱碳
参考答案：A
| 阅读理解。 |
| Visit Forest Zoo Come and see the Indian elephants and the new tigers from Northeast of China. The beautiful birds from England are ready to sing for you, and the monkeys from Mount Emei will be ready to talk to you. The lovely dogs from Australia want to smile at you. Sichuan pandas will play balls for you. The giraffes (长颈鹿) from Africa are waiting to look down at you. Tickets Grown-ups (成年人):￥3 Children: Over1.4m:￥2 Under1.4m: Free Opening time 9:00 a.m~4:00 p.m.,every day except Friday 10:00 a.m.~3:00 p.m. Keep the zoo clean! Do not touch, give food or go near to the animals. |
| 1. Why does the writer introduce so many animals from different places to us? |
[ ] |
| A. To show animals can do everything. B. To make us lovely in the zoo. C. To attract us to the zoo. |
| 2. How much does Mr. Smith have to pay if he visits the zoo with his son of three? |
[ ] |
| A. ￥3. B. ￥4. C. ￥6. |
| 3. At which of the following time can we vistt the zoo? |
[ ] |
| A. 8:30 a.m. Wednesday. B. 3:30 p.m. Sunday. C. 5:30 p.m. Tuesday. |
| 4. What should we do in the zoo? |
[ ] |
| A. To throw things everywhere. B. To keep the zoo clean. C. To keep the zoo full. |
| 5. From the passage, we can infer (推断) a giraffe must be a very _____ animal. |
[ ] |
| A. short B. strong C. tall |