[单选题]国家电网公司配电网工程典型设计（2016 年版） 湖南省电力公司实施方案 10kV 配电变台典型 设计设计土壤电阻率（ ） Ωm。
A.不大于 10
B.不大于 50；
C.不大于 100
D.不大于 1000

Broadly speaking, the Englishman is a quiet, shy, reserved person who is fully (21) only among people he knows well. In the presence of strangers or foreigners he often seems inhibited, (22) embarrassed. You have only (23) a commuter train any morning or evening to see the truth of this. Serious-looking businessmen and women sit reading their newspapers or dozing in a comer; no one speaks. In fact, to do so would seem most unusual. (24) , there is here an unwritten but clearly understood code of behaviours which, (25) broken, makes the person immediately the object of (26) .
It is a well-known fact that the English have a (27) for the discussion of their weather and that, given half a chance, they will talk about it (28) . Some people argue that it is because English weather (29) forecast and hence is a source of interest and (30) to everyone. This may be so. (31) Englishmen cannot have much
A. passion
B. fancy
C. necessity
D. judgement