问题
单项选择题
金属烤瓷冠桥进行后焊时,其热源为
A.烤瓷炉
B.电阻炉
C.汽油加压缩空气
D.天然气加压缩空气
E.烙铁
答案
参考答案:A
金属烤瓷冠桥进行后焊时,其热源为
A.烤瓷炉
B.电阻炉
C.汽油加压缩空气
D.天然气加压缩空气
E.烙铁
参考答案:A
根据对话内容,从方框内选择合适的句子补全对话。(有两项多余) | |
W: I have visited the World Expo Garden in Shanghai. M: That must be exciting. __2__ You must have waited for a long time to visit some wonderful pavilions, didn't you? W: Yes, I did. But I think it's worth (值得) visiting. __3__ M: You're right. I want to go to the World Expo Garden, too. W: __4__ M: I'm planning to go during National Day holiday. W: __5__ M: The China Pavilion, of course. W: Have a pleasant trip. M: Thanks. |