[单选题]电压等级为 10kV 及以下时,设备不停电时的安全距离为( )。
A.0.40m
B.0.60m
C.0.70m
D.1.0m

When the passage is read for the first time, you should listen carefully for its general idea. When the passage is read for the second time, you are required to fill in the blanks numbered from 26 to 33 with the exact words you have just heard. For blanks numbered 34 to 36 you are required to fill in the missing information. For these blanks, you can either use the exact words you have just heard or write down the main points in your own words. Finally, when the passage is read for the third time, you should check what you have written.
Why do people marry People divorce often, but they remarry soon enough after they divorce. Now many of them divorce at a much younger age than before. But what many sociologists find difficult to understand is that they seem to be more eager to {{U}} (26) {{/U}} into marriage than get out of it.
In the old days there was every reason to marry young--{{U}} (27) {{/U}} among the working class. In