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【简答题】
Cloze Directions: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Please fill in the corresponding letter such as A, B,C or D etc. for each item on Answer Sheet. You may not use any of the words in the bank more than once. Humans use water for three basic purposes: agriculture, industry, and domestic and municipal use. And the amount of water 1 to each person decrease as the population grows, 2 the possibility of water shortages. Water shortages will not come all at once in every part of the world. Just as the world’s population is 3 distributed by region, so is the annual 4 of renewable water. Rainfall and snowfall are 5 by uneven weather patterns and landscape, and as a result, some areas of the world get more precipitation than others. This leads to uneven 6 of water all over the world. Natural water scarcity has prompted many nations to try to increase their water supplies by building dams to catch water that otherwise would escape to the sea, or by sinking more and deeper wells. But these efforts can have 7 side effects than can contribute to water scarcity. Instead of building dams, some countries choose to increase their 8 to groundwater. But this practice increases the risk of overpumping aquifers ( 蓄水层 ). Pollution also affects the water supply, reducing the available water by making it toxic or otherwise 9 for human use. Water shortages could also lead to international conflicts as countries 10 for limited water resources. Political tensions over water often appear when different nations lay claim to the same river, lake, or aquifer. According to the UN, more than 300 river basins and aquifers worldwide cross nations boundaries are creating the potential for conflicts. A. access B. positively C. deliberately D. compete E. negative F. distribution G. available H. determined I. unevenly J. unfit K. starved L. raising M. approach N. arising O. supply 1. Which one is for Question 1?
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皮皮学刷刷变学霸
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【单选题】根据ω方程,在暖平流区,往往高层有()变高,低层(),有()运动
A.
正,辐合,上升
B.
负,辐散,下沉
C.
正,辐散,下沉
D.
负,辐合,上升
【判断题】通常来说,反应物组成的变化对产品的组成没有影响
A.
正确
B.
错误
【简答题】暖平流比四周()的地区,有利于气旋发展。
【单选题】在天气图分析中,请根据高空锋区的冷暖平流确定锋的种类,()。
A.
锋区中有暖平流为冷锋
B.
锋区中有暖平流为暖锋
C.
锋区中有暖平流为静止锋
D.
锋区中有暖平流为锢囚锋
【单选题】如图所示,设计一铰链四杆机构。已知行程速度变化系数K=1,摇杆长为lCD=100 mm,连杆长为lBC=150 mm,试设计该铰链四杆机构,求曲柄AB和机架AD的长度lAB和lAD( )。【图片】
A.
l AB =65.24 mm, l AD =185.33 mm
B.
l AB =50 mm, l AD =173.21 mm
C.
l AB =54 mm, l AD =173.21 mm
D.
l AB =55 mm, l AD =180 mm
【单选题】关于翼静脉丛的交通途径错误的描述是()
A.
经卵圆孔静脉网至海绵窦
B.
经破裂孔导血管至海绵窦
C.
经面横静脉至下颌后静脉
D.
经面深静脉至面静脉
E.
经上颌静脉至下颌后静脉
【单选题】在天气图分析中,根据高空锋区的冷暖平流确定锋的种类, ________ 。
A.
锋区中有暖平流为冷锋
B.
锋区中有暖平流为暖锋
C.
锋区中有暖平流为静止锋
D.
锋区中有暖平流为锢囚锋
【单选题】关于翼静脉丛的交通途径错误的描述是
A.
经卵圆孔静脉网至海绵窦
B.
经破裂孔导血管至海绵窦
C.
经上颌静脉至下颌后静脉
D.
经面深静脉至面静脉
E.
经面横静脉至面静脉
【简答题】暖平流比四周()的地区,有利于反气旋发展。
【单选题】下列关于翼静脉丛的描述中,错误的是
A.
位于翼内、外肌与颞肌之间
B.
向浅面经面深静脉与面静脉交通
C.
深面经卵圆孔和破裂孔导血管与颅内海绵窦交通
D.
其汇入的面静脉缺乏静脉瓣
E.
仅收纳与上颌动脉翼腭窝段的分支伴行的静脉
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