题目内容
（请给出正确答案）
According to the way the machine operated, the felling machine can be classified into ______.
A. three-wheel machine vs. four-wheel machine
B. drive to tree machine vs. swing to tree machine
C. saw-head machine vs. shear-head machine
简答题官方参考答案
（由简答题聘请的专业题库老师提供的解答）
更多“According to the way the machine operated, the felling machine can be classified into ______. A. t”相关的问题
A、1
B、0.5
C、0
D、can not determine
A、MEK and MAP kinase
B、PI-3 kinase and PTEN phosphatase
C、JAK kinases and STATs
D、Ras and Raf
“While the increase in carbon dioxide in the atmosphere is the main effect of global warming, there are other effects as well. For example, there is a marked increase in infectious diseases that have changed their range in the past few years. Cases of malaria and dengue fever have occurred as far north as New York, New Jersey and Michigan in recent years, and diseases such as encephalitis and becoming more common. The sea level has changed, affecting low-lying areas and destroying beaches and wetlands around the world. Glaciers and snow cover are gradually disappearing on all five continents. And finally, plant and animal populations are shifting and migration patterns are changing as species try to adapt to changing climates. Some species that are unable to adapt successfully have begun to decline. More severe weather events, such as droughts and flooding, are also a consequence of global warming, and a warning that action must be taken to preserve the environment now.” (From “The Sierra Club Global Warming Campaign” in J. Buckley, ed., The Harbrace Reader for Canadians, p. 273) From what perspective does the passage discuss global warming?
A、First-person narrator
B、Second-person narrator
C、Third-personal narrator
D、None of the above
A、Initiator radical
B、Another growing chain radical
C、Transfer reaction from one radical to another
D、None of the above
警告：系统检测到您的账号存在安全风险
为了保护您的账号安全，请在“简答题”公众号进行验证，点击“官网服务”-“账号验证”后输入验证码“”完成验证，验证成功后方可继续查看答案！
