皮皮学，免费搜题
登录
搜题
【单选题】
The 1988 drought in North America was probably caused by shifts in the temperature patterns of large equatorial stretches of the Pacific Ocean. The drought, therefore, is not evidence for the hypothesis that a long-term global warming trend, allegedly caused by atmospheric pollutants such as carbon dioxide, is occurring. Which of the following, if true, constitutes the best criticism of the argument above?A.
Most pre-1988 droughts for which we have records were preceded by shifts in temperature patterns in the Pacific Ocean.
B.
There has been no warming trend in the United States over the last 100 years.
C.
The consequences of global warming occur long after the actual emission of pollutants into the atmosphere.
D.
Emissions of carbon dioxide gas into the atmosphere increased in 1988.
E.
A global warming trend could cause increases in the frequency and severity of shifts in temperature patterns in the Pacific Ocean.
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】关于芳基重氮盐和芳胺的偶合反应，下列说法不正确的是
A.
通常在 pH 值 5-7 的弱酸性条件下进行
B.
在弱酸性介质中，芳胺呈游离态，有利于亲电取代反应
C.
若芳胺中 氨基是个强的供电子基，偶合反应可以在取代氨基的间位上发生
D.
在强酸性条件下，不利于偶合反应进行
【简答题】母猪断奶后多在( )天内发情。
【单选题】摄像机按照图像尺寸大小不同可分为:标准清晰度、准高清晰度、高清晰度和超高清晰度摄像机。其中200万像素摄像机的分辨率为()
A.
800X600
B.
1920X1080
C.
1280X960
D.
1024X768
【单选题】People are in low spirits
A.
during the night.
B.
on clear and fine days.
C.
on hot and sunny days.
D.
during cold and stormy weather.
【简答题】在“万方数据”首页,一框式检索学位论文,可检索的最后一个字段是 。
【单选题】假设采用320万像素的数码相机拍摄照片时设置的分辨率为1800×1200，则拍摄的照片在分辨率为300dpi的喷墨打印机上按1:1的比例打印时，所得到的相片尺寸大小均为______。 A) 3英寸×2英寸 B) 4英寸×3英寸 C) 6英寸×4英寸 D) 7英寸×5英寸
A.
B.
C.
D.
相关题目：