书写筛选条件时应遵守的规则有（）. A．字段名复制到条件区的第

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问题不定项选择

书写筛选条件时应遵守的规则有（）.

A．字段名复制到条件区的第一行

B．所有条件值都写在条件区的第二行

C．条件区可以紧挨着数据清单

D．条件区内不能有空行

答案

参考答案：A, D

单项选择题

A ship station on receiving a shore-to-ship distress alert should（）.

A.keep silence

B.interfere with such communication

C.establish communication as directed and render such assistance as is required and appropriate

D.refuse communication as directed and render such assistance as is required and appropriate

填空题

焦油加工的主要任务是获得酚、萘、蒽等纯产品和（）等粗产品。