皮皮学,免费搜题
登录
搜题
【简答题】
In 1990 a report was published about what the earth might be like 20 years from then on. The report was a result of a three-year ___36___. according to the report, the picture of the earth in the year 2010 is not a ___37___ one. The world will be more __38___ because the population will continue to grow. The population could be ___39__ 6 300 million, almost 2 150 million more than in 1985. More people would move into cities, especially cities in ___40___ countries. Cities like Cairo and Jakarta probably would ___41___ have 15 million by then. Food production will ___42___, but not enough to feed all the people. Farmers will grow 90% more food than they did in 1985, __43___ most of the increase would be in countries that ___44___ produce enough food for their people. Little increase is ___45___ in South Asia, Africa and the Middle East. Poor farming ways are ___46___ large areas of crop land, changing farms into deserts. More farmland is ___47___ as cities become larger and more houses are built. ___48___ will get worse as industrial countries burn more coal and oil. Many of the world’s ___49___ could disappear as more and more trees are cut down. Energy will continue to be a serious problem. The experts say their picture of the earth for the year 2010 ___50___. They only carried out the situation that ___51___ today. By changing the situation, by ___52___ the problems, the picture can be changed. There is ___53___ time for the nations of the world to work ___54___ a plan of action. But they warned that ___55___ too long to make decisions would greatly reduce the chances of success. 小题1: A.learning B.project C.notice D.study 小题2: A.pleased B.pleasant C.safe D.blue 小题3: A.dangerous B.beautiful C.crowded D.terrible 小题4: A.no more than B.as many as C.as much as D.as large as 小题5: A.developing B.developed C.big D.mountainous 小题6: A.none B.each C.all D.neither 小题7: A.insist B.reduce C.increase D.continue 小题8: A.so B.but C.or D.however 小题9: A.already B.hardly C.partly D.never 小题10: A.wanted B.lacked C.found D.expected 小题11: A.destroying B.protecting C.disturbing D.interrupting 小题12: A.saved B.lost C.discovered D.used 小题13: A.Air pollution B.Water pollution C.Some diseases D.All farmland 小题14: A.animals B.plants C.forests D.people 小题15: A.must be true B.will come true C.can't be true D.may be wrong 小题16: A.happens B.develops C.exists D.appears 小题17: A.settling B.working out C.answering D.dealing 小题18: A.no B.still C.less D.plenty of 小题19: A.about B.in C.out D.for 小题20: A.working B.suggesting C.spending D.waiting
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】可使关键帧之间的运动变得平滑流畅的命令是哪个?
A.
Motion Sketch
B.
Smoother
C.
Roving
D.
Wiggler
【单选题】能量多普勒的特点有( )
A.
显示的信号不受探测角度的影响
B.
可以显示平均速度为 0 的灌注区
C.
能显示低流量、低速度的血流
D.
不受 Aliasing 现象的影响
E.
以上均是
【单选题】多普勒能量图的主要特点有()
A.
显示的信号不受探测角度的影响
B.
可显示平均速度极低的灌注区
C.
能显示低流量、低速度的血流
D.
不受现象的影响
E.
以上均是
【简答题】由 20% 氯乙烯、 20% 醋酸乙烯、 30% 丙烯、 30% 异丁烯的单体单元组成的聚合物(粉末状)
【简答题】由 20% 氯乙烯、 20% 醋酸乙烯、 30% 丙烯、 30% 异丁烯的单体单元组成的共聚物(粉末状)
【简答题】由20%氯乙烯、20%醋酸乙烯、30%丙烯、30%异丁烯的单体单元组成的共聚物(粉末状)
【判断题】一元共轭酸碱对KaKb= ,可知物质的酸性越强,其共轭碱的碱性就越弱。
A.
正确
B.
错误
【单选题】多普勒能量图的主要特点有
A.
可显示平均速度极低的灌注区
B.
不受现象的影响
C.
显示的信号不受探测角度的影响
D.
能显示低流量 、 低速度的血流
【判断题】若双链DNA中得一条链碱基顺序为pCpTpGpGpApCpT,则另一条链的碱基顺序为pApGpTpCpCpApG。
A.
正确
B.
错误
【单选题】《铁路客运服务图形标志》中,图形衡器上的手提箱表示()。
A.
行李手推车
B.
行李托运处
C.
行李寄存处
D.
自动化行李寄存箱
相关题目: