随pH值改变而溶解度不发生改变的是A．有机酸 B．生物碱 C．黄酮 D．蒽醌 E．甾

①急剧的时代______引起人们的心理失衡，是当今几乎每个中国人都会体验到的生存现实。 ②今年我国法官将摘下大檐帽，披上法官袍。法官制服的改换，体现了法学观念的______。 ③通过合理调配和技术改造，______提高了，大伙的干劲更高了。

A．变迁 退变 功效

B．变迁 蜕变 工效

C．变革 退变 工效

D．变革 蜕变 功效

（环境保护）（10分）

近段时间，随着我国环保部门大气污染政策的相继出台，目前，全国多地环保部门相继把严打炭烧烤纳入大气污染治理的重点之一。环保部关于细颗粒物污染防治的相关草案，建议“在人口稠密的大型城市，应通过立法予以禁止露天炭烧烤”。现在，北京、江苏等地就已经开始禁止露天炭烧烤，违者将面临高额罚款。

说明露天炭烧烤对生态环境产生哪些危害，并分析解决问题的措施。（10分）

The following questions present a sentence, part of which or all of which is underlined. Beneath the sentence, you will find five ways of phrasing the underlined part. The first of these repeats the original; the other four are different. If you think the original is best, choose the first answer; otherwise choose one of the others.

These questions test correctness and effectiveness of expression. In choosing your answer, follow the requirements of standard written English; that is, pay attention to grammar, choice of words, and sentence construction. Choose the answer that produces the most effective sentence; this answer should be clear and exact, without awkwardness, ambiguity, redundancy, or grammatical error.

Unless I am greatly mistaken, any apparent connection between my dog and the destroying of your petunias is purely coincidental.（）

A. connection between my dog and the destroying of

B. connection between my dog and the destruction of

C. connection of my dog with the destruction of

D. connection between my dog and the destroying to

E. connection from my dog with the destruction to

静息电位接近于（）次。

A．K+平衡电位

B．反极化电位

C．C1-平衡电位

D．Na+平衡电位

E．Ca2+平衡电位

玻璃探测器的种类主要有（）。

A.次声波玻璃破碎探测器

B.次声波—声波双鉴玻璃破碎探测器

C.振动玻璃破碎探测器

D.声波—振动双鉴玻璃破碎探测器