我是高职“3+2”的学生，就是三年大专两年本科...

甲家有一块祖传奇石，乙为一雕刻家。甲向乙借款。并将奇石质押于乙，在质押期间乙误以为奇石为自己所有将其雕刻成印章，经鉴定印章价值3万元，奇石价值1万元。事后，乙将印章卖给了不知情的丙得款3万元。丙丢失该印章，并被丁拾得，丁交给拍卖行拍卖，被戊以4万元的价款买得。丙半年后发现印章在戊处，要求返还，此时印章价值为5万元，为此引起纠纷。根据相关法律，请回答下列问题：?

对于乙在质押期间将奇石雕刻成印章的行为，其性质为：( ）查看材料

A.侵权行为
B.添附
C.无因管理
D.无权代理

Thenumber of speakers of English in Shakespeare′s time is estimated to have beenabout five million.Today it is estimated that some 260 million people speak itas a(an)21?language,mainlyin the United States,Canada,Great Britain,Ireland,South Africa,Australiaand New Zealand.In addition to the standard varieties of English found inthese areas,22?are a greatmany regional and social varieties of the language as well as?23?levels of usage that are employedboth in its spoken and written forms.
In fact,it is?24?to estimate the numberof people in the world who have acquired an adequate working knowledge ofEnglish in addition to their own languages.The?25?for English learningand the situations in which such learning takes place are so varied that itis 26 to explain and still moredifficult to judge?27?forms an adequateworking knowledge for each situation.
The main reason forthe widespread?28?for English is its present dayimportance as a world language.Besides 29 the indefinite needs of its nativespeakers,English is a language in which some of important works inscience,technology,and other?30 are beingproduced,and not always by native speakers.It is widely used for 31 purposes as meteorological(气象的)and airport communications,international conferences,and the?32?of information over the radio andtelevision networks of many?33.It is a language of widercommunication for a number of developing countries,specially former Britishcolonies.Many of these countries have multilingual?34.and need a language for internalcommunication in such matters as government,commerce,industry,,law and 35 as well as for internationalcommunication and for entrance to the scientific and techno-logicaldevelopments in the West.

第29题答案是（ ）

A.providing
B.serving
C.supposing
D.leaving

除了剩余价值与可变资本的比率外，剩余价值率还可以表示为( )

A.剩余劳动时间与必要劳动时间的比率
B.剩余劳动时间与社会必要劳动时间的比率
C.可变资本与不变资本的比率
D.利润与预付总资本的比率