题目内容
（请给出正确答案）
The heating system has recently been______to make it more efficient.
A．modified
B．changed
C．corrected
D．replaced
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更多“The heating system has recentl…”相关的问题
We don't need heating system, ______.
A．and nor we can afford it
B．we don't afford it
C．nor can we afford it
D．nor can it afford
The means of receiving communications are too numerous and varied for systematic classification; therefore, the analysis must begin with the means of receiving communication. Reception of communication is achieved by our senses. Sight, heating, and touch play the most important roles.
Example of visual communication are gesture and mini-cry. Although both frequently accompany speech, there are systems that rely solely on sight, such as those used by deaf and dumb persons. Another means of communicating visually is by signals of fire, smoke, flags or flashing lights. Feeling may be simply communicated by touch, such as handshaking , although a highly developed system of handshaking has enabled blind, deaf, and dumb persons to communicate intelligently. Whistling to someone, applauding in a theater, and other forms of communication by sound rely upon the ear as a receiver. The most fully developed form. of auditory communication is, of course, the spoken language.
The means of communication mentioned so far have two feature in common; they last only a short time, and the persons involved must be relatively close to each other. Therefore all are restricted in time and space.
The author explains that he will deal with reception of communication first because ______.
A．communication actually takes place when the message is received
B．there are more means of receiving than sending communications
C．reception of communications involved use of the senses
D．it is difficult to organize by type the means of sending communications
Earth's radiation "budget" (11)_____ an "extremely important parameter that is (12)_____ known", says Robert Charlson, an atmospheric scientist at the University of Washington at Seattle. "It needs to be (13)_____ much better than it is".
(14)_____ about the amount of sunlight reaching Earth's surface were first raised in 1974. Researchers from the United States and Israel recorded a 12% drop (15)_____ sunlight over 40 years at a (16)_____ station in the southern Sinai Peninsula. Since then, others have used a variety of techniques to try to track (17)_____ sunlight. Three years ago, for example, a (18)_____ led by Beate Liepert at Columbia University's Lamont-Doherty Earth Observatory gathered data from ground (19)_____ around the world and found that solar radiation reaching the surface fell (20)_____ 4% from 1961 to 1990.
A．presents
B．offers
C．grants
D．provides
从右边方格内找出与左边英语短语相匹配的翻译选项
(A)globalization ( )机制
(B)economic system ( )总理
(C)measure ( )全球化
(D)culturaI divide ( )措施
(E)mechanism ( )文化差异
(F)Prime Minster ( )大使
(G)investment ( )投资
(H)dispute ( )争端
(I)ambassador ( )代表
(J)on behalf of ( )经济体制
Ms. Markova’s comments suggest that the practice of standard testing
A, prevents new habits form. being formed
B, no longer emphasizes commonness
C, maintains the inherent American thinking model
D, complies with the American belief system
She likes heating her own voice. She never stops ________
A．talking
B．telling
C．to talk
D．to tell
They recommended______ smaller heating and cooling systems.
A．to use
B．to be used
C．being used
D．using
Which of the following statements is NOT true？
A．Even windmill' s action depends on the sun.
B．The sun produces enormous energy for man to make use of.
C．Some day man will be able to utilize 100 % of the solar energy that gets to the earth.
D．The sun produces different heating effects in different places.
