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问题 多项选择题

根据《环境影响评价技术导则-生态影响》，关于生态影响评价工作分级和调整，说法正确的是（）。

A.评价项目的工程占地范围包含永久占地和水域，但不包括临时占地

B.改扩建工程的工程占地范围以全部占地（含水域）面积或长度计算

C.拦河闸坝建设可能明显改变水文情势等情况下，评价工作等级应上调一级

D.在矿山开采可能导致矿区土地利用类型明显改变，评价工作等级应上调一级

答案

参考答案：C, D

解析：评价项目的工程占地范围，包含水域，也包括永久占地和临时占地；改扩建工程的工程占地范围以新增占地（含水域）面积或长度计算。生态影响评价工作等级没有下调一级的说法。

单项选择题

Should we care if over 150 known species of animals have (91) from the earth in the last fifty years Should we be concerned that there are (92) thousands of species whose very existence is (93) endangered—largely because of our activities (94) , after all, is the natural end of populations. Species are born, then (95) , and then die. Some live a (96) time, perhaps millions of years; some die more quickly. We have (97) the extinction of many species we know about, and we have undoubtedly sealed the (98) of others. In fact, there are undoubtedly many other species that have lived among us during our time on earth, but that have disappeared as a (n) (99) of our activities without our ever having known they existed.
It is hard to explain the rationale of many of us who are concerned about such matters. I have never seen a sea whale, (100) I don’t want them to become extinct. Moreover, I felt this way long before I understood anything about how they might be an important part of an ecosystem. Possibly such feelings merely reflect the cultural attitude that it is "nice" to wish other living things well; thus, the attitude is (101) . I feel nice.
There are, of course, more rational reasons for (102) the extermination of any species. For one thing, the kind of attitude that encourages or sanctions the destruction of other species is a threat (103) our own wellbeing. If such an attitude exists, we ourselves might (104) victim to it. living things (including us) might be expected to fare better where there is (105) for life. The extinction of other species could also threaten us (106) by simplifying the system of which we are a part or by destroying parts of the ecosystem (107) which we directly rely. For example, if we continue to poison the oceans (108) we are willing to believe only a few bottom dwellers are affected, we might (109) overstep some critical threshold and trigger the wholesale death of plankton, thus finding ourselves without a major (110) of the world’s food and with our oxygen supplies dwindling.

A．gain

B．enter

C．become

D．fall
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多项选择题 案例分析题

病历摘要：男，27岁，头晕乏力、面色苍白1年。检验结果：RBC2.5×1012/L，Hb56g/L，MCV、MCH、MCHC均低于正常；血涂片见红细胞中央苍白区扩大，可见靶形红细胞。

中幼红细胞的胞质呈多嗜色性的原因是（）

A.RNA渐少

B.浆内血红蛋白形成较多

C.细胞发生退化变性

D.浆内血红蛋尚未形成

E.RNA等嗜碱性物质占绝对比例
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