搜题请搜索小程序“爱下问搜题”
问题 单项选择题

创建支持计算功能的电子表单域时，必须用到：（）

A.附加文件工具（Attach File Tool）

B.JavaScript

C.文档元数据（Document Metadata）

D.PDF表单不支持计算功能

答案

参考答案：B

改错题

When I first learned to write in English，I ran into much difficulties. The main problem was in that I always thought in Chinese and tried to translate anything into English. My teacher advised me to keep my diary. I followed her advice and should put down 100 words or so each day. Soon I began to enjoy talk to myself on paper as I was learning to express me in simple English. One day I wrote a little story and showed to my teacher. She liked it very much and reads it to the class. All said the story was a good one. Their word were a great encouragement to me.
查看答案
单项选择题

以下关于明洞施工的规定中，错误的是（）。

A、明洞开挖前，洞顶及四周应设防水、排水设施

B、明洞应自上而下开挖

C、开挖松软地层边，仰坡应随挖随支护

D、明洞槽不宜在雨天开挖
查看答案