Queen Elizabeth II ruled Britain in Shakespeare’s time.()
Queen Elizabeth II ruled Britain in Shakespeare’s time.()
Queen Elizabeth II ruled Britain in Shakespeare’s time.()
Queen Elizabeth I is the present monarch of the UK.()
A.错误
B.正确
since the 1950s in 1990 in 1955
over three decades in 1933
V.S. Naipaul, a writer in search of roots and winner of Nobel Prize for literature in 1999, was born in Trinidad(1), the son of an Indian civil servant. In his childhood, he was first educated in his hometown and then Oxford University, where he studied literature. There he met Pat and they got married(2).(3), he has been based in England yet spent much time traveling around the world. Travels(4)have taken him around the world on a quest for home and for roots. Sir V.S. Naipaul, now 69, was knighted (授以爵位) by Queen Elizabeth(5). A critic wrote the following about him: "(He is) the wanderer who tries to go home, but is not taken in and is accepted by another home only so long as he admits he is a lodger there."
A.只有IV
B.I和II
C.I、II和III
D.都不是
试证明:
设E是由某些有理数形成的集合,且满足
(i)若a∈E,b∈E,则a+b∈E,ab∈E;
(ii)对任一有理数r,恰有下述关系之一成立:
r∈E,-r∈E,r=0,
则E是全体正有理数形成的数集.
(Du Bois-Reymond) 设f(x),g(x)在[a,∞)上定义,且令(a≤x<∞).若(i)f∈R([a,X])(a<X),|F(x)|≤M(a≤x<∞);(ii)g(x)在[a,∞)上可微,且g'∈L([a,∞));(iii)存在极限,则积分收敛.
A.错误
B.正确
A.错误
B.正确