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---Thank you for your timely help.
--- My pleasure. It is hardly      talking about.
A．worthyB．worthwhileC．worthD．useful
C

試題分析：句意：--謝謝你及時的幫助。--不用謝，不值得一提。D.useful“有用的”，不符合句意，ABC都是“值得的”，worth 是一個只能作表語的形容詞， 意思為 “值……的” 、 “相當(dāng)于……的價值的” 、 “有…… 價值的”“值得……的” 、后接名詞、接動名詞的主動形式。worthy 可作表語，也可作定語。作定語時意思為“有價值的”“值得尊敬的”“應(yīng)受到 、 、 賞識的” ；用作表語時意思為“值得……的”“應(yīng)得到……的” 、 ，其后接 of sth.，也可以后接 to do sth.，worthwhile 與 worthy 一樣，既可作表語，又可作定語。表示某事因重要、有趣或受益大 而值得花時間、金錢或努力去做，一般做“值得的”“值得做的”“有意義的”解。用作表 、 、 語時，可接動名詞或動詞不定式。用于句型：It is worthwhile to do/doing sth.所以選C。
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Title: Chang’e 3
__小題1:__
It is a lunar exploration mission operated by CNSA, incorporating a robotic lander and China's first lunar rover.
Name Source
It was named after the goddess of the Moon, __小題2:__ up the names of Chang'e 1 and Chang'e 2.
 
The
History
of
China’s Lunar Exploration Program
The program
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Chang'e 1
On 24 October 2007, it was launched and entered lunar orbit on 5 November.
On 1 March 2009, it was impacted into the surface of the Moon on purpose.
To help select a proper __小題3:__for Chang’e 3 lander, data about the entire lunar surface were gathered.
 
Chang’e 2
On October 2008, it was approved and launched __小題4:__ years later.
Its mission was to conduct research for Chang’e 3 soft landing.
Although __小題5:__designed, it was better equipped than Chang’e 1.
 
Chang’e 3
Started in March 2012, it achieved lunar orbit on 6 December 2013 and landed 8 days later, becoming the __小題6:__ probe to soft-land on the Moon since Luna 24 in 1976.
The objectives are to measure the structure and depth of lunar soil and investigate the lunar crust to a great __小題7:__.
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the rover
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