logo - 刷刷题
下载APP
【简答题】

There is no denying that our world is becoming more and more developed. Due to the (36) conveniences brought about by the thriving industries of today, we are (37) toward a more advanced stage of civilization. However, we should never fail to note that while we are trying every means to satisfy our (38) needs for better quality and larger quantity by producing millions of tons of (39) plastic bags and chopping down vast areas of forest, we are, in fact, cutting the (40) of ourselves. It is high time that we came to face the severe problem of (41) pollution mused by our inattention to the (42) development of industries. Nobody can bear the idea of living in an environment where people have to wear (43) masks whenever they go out and where a sunny bright day becomes a rare sight. Nevertheless, (44) And if we do not pr environmental pollution, we would (45) just like the fishes in the oil-polluted waters. In order to improve our environment, we should, for example, (46) decrease the exhaust of cars and adopt nuclear non-proliferation policy. What’s more important, we should plant more trees and grow more grass. Only by this can we have a beautiful place to live in the future.

举报
参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【单选题】碱性最大的是

A.
麻黄碱
B.
小檗碱
C.
汉防己甲素
D.
苦参碱
E.
莨菪碱