三类防雷建筑避雷带网格布置不应大于( )。
A.20m×20m B.24m×16m C.10m×10m D.12m×8m
参考答案:A,B
Demands for per protection for wildlife in Britain sometimes hide the fact that similar needs are felt in the rest of Europe. Studies by the Council of Europe, of which 21 (1) are members, have (2) that 45 percent of reptile (3) and 24 percent of butterflies are in danger of (4) .European concern for wildlife was (5) by Dr. Peter Baum, an expert in the environment and natural resources division of the council, when he spoke (6) a conference arranged by the administrators of a British national park. The park is one of the few areas in Europe to (7) the council’s diploma for nature (8) of the highest quality, and Dr. Peter Baum had come to (9) it to the park once again. He was afraid that public opinion was (10) national parks, and that those set up in the 1960s and 1970s could not be set up today. (11) Dr. Baum clearly remained a p supporter of the (12) that natural environments needed to be allowed to survive in (13) in their own right."No area could be expected to (14) both as a true nature reserve and as a tourist attraction," he went on. The short-sighted view that reserves had to serve (15) human demands for outdoor recreation should be (16) by full acceptance of their importance as places to (17) nature for the future."We forget that they are the guarantee of life systems, (18) which any built-up area ultimately depends," Dr. Baum went on. "We could manage without most industrial products, but we could not manage without nature. (19) , our natural environment areas, which are the original parts of our countryside, have shrunk to become mere islands in a (20) and highly polluted land mass.\
A.sorts
B.kinds
C.varieties
D.species
Elle a laissé _ qu’elle partirait sans nous.
A.comprendre
B.entendre
C.saisir
D.réaliser