问题
判断题
《中国民用航空通信导航监视系统运行、维护规程》第十六条规定，甚高频对空通信设备从主用机交换（人工或自动）到备用机工作的换机时间不能超过50秒。
答案
参考答案：错
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《中国民用航空通信导航监视系统运行、维护规程》第十六条规定，甚高频对空通信设备从主用机交换（人工或自动）到备用机工作的换机时间不能超过50秒。
参考答案：错
| 从下列方框中选适当的词填空，注意其形式变化。 | |
2. Hearing the news, his mother ____ out crying. 3. Almost the whole city was completely ____ by the earthquake. 4. "____!"he said to me the moment I entered the room. 5. ____ from his appearance, the manager must be over fifty. 6. Nobody likes to share the room with Gerard. He has ____ feet. 7. Their happy memories of the wedding are still ____ in their minds. 8. Never try to trouble him by French. French is as ____ to him as English. 9. Three days passed, but there were many people still ____ in the ruins. 10. Everybody present was extremely shocked by his ____ news. |