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【单选题】
太姥山(最高峰海拔917米)位于福建省东北部,岩石为花岗岩,经长期地质作用形成各种形态的360多个。下图为太姥山花岗岩峰丛地貌景观图,读图完成下列问题。 图中“峰丛”形成过程的先后顺序最有可能是()
A.
岩浆活动一固结成岩一侵蚀、搬运
B.
岩浆活动一地壳运动一风化、侵蚀
C.
岩浆活动一变质作用一沉积、
D.
岩浆活动一地壳运动一搬运、沉积
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参考答案:
举一反三
【单选题】废气再循环是为了减少( )排放。
A.
CO
B.
HC
C.
NOx
D.
CO2
【判断题】EGR(废气再循环)装置主要是为了减少发动机CO排放量。( )
A.
正确
B.
错误
【单选题】Which enhancement w as added to IGMP version 3?()
A.
membership query message
B.
membership report message
C.
leave group message
D.
source filtering
E.
destination filtering
【简答题】In the 1st version we learn that scientists were ______ the world about this____ years ago, but people did ______. In the 2nd version we learn that many ______have happened ______ ___ our grandparents...
【单选题】废气再循环是为了减少( )排放。
A.
CO 2
B.
NO X
C.
HC
D.
CO
【单选题】电力工业中为了提高功率因数,常采用(     )。
A.
给感性负载串联补偿电容,减少电路电抗
B.
给感性负载并联补偿电容,减少电路无功功率
C.
提高发电机输出有功功率,或降低发电机无功功率
D.
给感性负载并联补偿电容,增大电路无功功率
【单选题】听力原文:W: In the film version of your life, Russell Crowe, who plays your part, sees people who really aren't there. Did aliens speak to you? M: When I began to hear voices I thought of the voices as fr...
A.
John Nash.
B.
Russell Crowe.
C.
Nash's friend.
D.
Crowe's doctor.
【单选题】听力原文:W: It's Friday, October 1st, isn't it? M: No, it's October 3rd. What's the date today?
A.
October 1st.
B.
October 3rd.
C.
Monday.
【单选题】废气再循环控制主要是为了减少( )的排放量
A.
NOX
B.
CO
C.
CH
D.
SO2
【单选题】电力工业中为了提高功率因数,常采用( )
A.
给感性负载并联补偿电容
B.
提高发电机输出有功功率,或降低发电机无功功率
C.
给感性负载串联补偿电容,减少电路电抗
D.
不确定
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