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Death Valley is one of the most famous deserts in the United States, covering a wide area with its alkali sand Almost 20 percent of this area is well below sea level, and Badwater, a salt water pool, is about 280 feet below sea level and the lowest point in the United States. Long ago the Panamint Indians called this place “Tomesha”— the land of fire. Death Valley’s present name dates back to 1849, when a group of miners coming across from Nevada became lost in its unpleasantness and hugeness and their adventure turned out to be a sad story. Today Death Valley has been declared(告)a National Monument(纪念碑)and is crossed by several well-marked roads where good services can be found easily. Luckily the change created by human settlement has hardly ruined the special beauty of this place. Here nature created a lot of surprise, almost like the sights on the moon, ever-changing as the frequent(频繁的)wind moves the sand about, showing the most unusual colors. One of the most surprising and variable(多变的)parts of Death Valley is the Devil’ s Golf Course, where it seems hard for one to tell reality from terrible dreams. Sand sculptures(沙雕)stand on a frightening ground, as evening shadows move and lengthen. 小题1:.. _______ is the lowest place in the desert. A.Tomesha B.Death Valley C.Nevada D.Badwater 小题2:.. The present name of the valley comes from _______. A.an Indian name B.the death of the miners C.the local people D.a National Movement 小题3:.. From the passage we can learn that _______. A.no one had ever known the desert before the miners B.it’s still not easy to travel across the desert C.people can find gas-stations, cafes and hotels in the desert D.people have changed the natural sight of the desert 小题4:. Devil Golf Course is famous for _______. A.the frequent wind B.the colors of the sand C.dream-like sights D.the sand sculptures 小题5:. From the passage we can see that the writer _______ the Death Valley. A.appreciates B.is fearful of C.dislikes D.is tired of
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【单选题】A disadvantage of the barter system is that
A.
no trade occurs.
B.
people must produce all their own food, clothing, and shelter.
C.
the opportunity to specialize is greatly reduced.
D.
gold is the only unit of account.
【简答题】常压下对湿度H一定的湿空气,当气体温度升高时,其将 ;而当总压P增大时, 将 。A. 不变B. 减小
【单选题】A disadvantage of pursuing a low-cost strategy is that:
A.
it makes it difficult for firms to customize their product offerings .
B.
price wars make it hard to compete with differentiators.
C.
it costs more than a differentiation strategy because of the necessity of high capital investments.
D.
powerful buyers are a major threat.
E.
it reduces customer retention.
【简答题】流式细胞术是一种对单细胞或其他生物粒子膜表面以及内部的化学成分,进行定量分析和分选的检测技术,它可以高速分析上万个细胞,并能从一个细胞中测得多个参数,是目前最先进的细胞定量分析技术。流式细胞仪的主要组成不包括A、液流系统 B、光路系统 C、抗原抗体系统 D、信号测量 E、细胞分选 流式细胞仪的技术特点不包括A、采用鞘流原理 B、以激光作激发光源 C、使用散射光检测 D、检测荧光信号 E、采用电阻抗...
【单选题】A disadvantage of a forward contract is that
A.
it may be difficult to locate a counterparty.
B.
the forward market suffers from lack of liquidity.
C.
these contracts have default risk.
D.
all of the above.
【单选题】A disadvantage of highly structured interviews is that
A.
the possible answers are limited.
B.
there is an opportunity to follow up with secondary questions on topics that turn out to be interesting to the interviewee.
C.
it’s easy to get sidetracked and go off on tangents.
D.
it takes more training to conduct highly structured interviews than any other form of interview.
【判断题】文彭是文征明的儿子( )
A.
正确
B.
错误
【单选题】A disadvantage of a sole proprietorship is that ____
A.
sole proprietors have unlimited liability.
B.
sole proprietors have very little control over operations of the business.
C.
it is more difficult and expensive to establish than other forms of business.
D.
its earnings are subject to higher tax rates than other forms of business.
E.
sole proprietors are required to share the firm’s profits with employees.
【单选题】船舶动力装置中当发生空冷器污堵时,轻者可采取用清水和清洗剂交替喷射的方法经常冲洗,污堵严重时可实现不解体浸湿式清洗;方法是:用清水和清洗剂以一定比例混总,注满底部装上盲板的空冷器,同时用蒸汽持续加温并用空气吹搅,一般需要()以上方能达到清除污垢的效果,清洗效果可依压差计读数、扫气压力、扫气温度、排气温度及冷却水温度而定。
A.
10h
B.
20h
C.
30h
D.
40h
【单选题】Which of the following is NOT a disadvantage of country life?
A.
That you feel you are separated from the world.
B.
That you have no secrets.
C.
That you have little chance of visiting a cinema.
D.
That shopping centers are far away from your house.
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