附件说明的规范写法是（ ）。
A、写明附件的发文机关即可D
附件说明应写明公文附件的顺序号和名称。故本题答案选D。
Australia, which is one of the world's developed countries, has become rich through ________.
Although Tom is satisfied with his academic achievement，he wonders _______ will happen to his family life .
翻译：我最近还在另一个地方说过：艺术的最高境界是无技巧。
英语翻译：telecommunications
When _______, water will be turned into steam.
