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下图为一组剖面示意图，反映了我国华北某地区土地利用状况由t 1 时期至t 4 时期的历史变化过程(t 1 时期至t 4 时期气候变化甚微，可忽略不计；图中河流断面位于中游处)。据此回答下列各题。 小题1:与t 1 时期相比，t 4 时期图示河流断面处的河流年内径流量变化情况可能是 ①丰水期流量增大，枯水期流量减小 ②年内径流量分配趋于均匀 ③洪峰流量和出现频率增大 ④夏秋季流量减小，冬春季流量增大 A．①② B．②③ C．①③ D．③④ 小题2:据图分析该河流下游地区洪涝灾害多发的主要人为原因是 ①过度放牧致使草场涵养水源、调节径流的功能下降 ②围湖造田导致湖泊调蓄洪峰的能力降低 ③过度砍伐、开垦山地使得地表覆被减少、水土流失加剧 ④城市面积扩大，加大了地表径流量、加快了径流汇集的速度 A．①② B．②④ C．①③ D．③④
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【简答题】Short Conversation4. ( )A. This is a good idea.. B. It depends on the weather C. Having a picnic in the open fits the weather D. He doesn’t like a picnic
【单选题】Conversation 4.
A.
He is fine
B.
He needs a surgery
C.
He has got influenze
D.
It hasn't been decided
【单选题】Conversation Four
A.
Giant Pandas need to take in nutrients in winter.
B.
Giant Pandas are endangered for food shortage.
C.
Giant Pandas could hibernate if they could have enough fat reserve.
D.
Bamboos are dying out.
【简答题】简述企业的总产出是如何分配的
【单选题】Conversation One 4.
A.
. It gets dirty.
B.
It gets old.
C.
It is too repetitive
D.
It is mentally tiring
【单选题】Conversation Four
A.
Visit a zoo.
B.
Apply for a job.
C.
Work as a volunteer.
D.
Talk with the manager.
【单选题】Short Conversation 4. ( )
A.
This is a good idea..
B.
It depends on the weather
C.
Having a picnic in the open fits the weather
D.
He doesn’t like a picnic
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