若正实数 、 、 ,满足 , ,则 的最小值为. 答案:【1】213−1My friends, Emma Daniels, spent the summer of 1974
traveling in Israel. During her monthlong stay in Jerusalem she often went to a
café called Chocolate Soup. It was run by two men, one of whom – Alex – used to
live in Montreal. One morning when Emma went in for coffee, while chatting with
her new friend Alex, she mentioned that she had just finished the book she was
reading and had nothing else to read. Alex said he had a wonderful book she
might like, and that he’d be happy to lend it to her. As he lived just above
the café, he quickly ran up to get it. The book he handed to Emma just minutes
later was Markings, a book by a former Secrcetary-General of the United Nations
(UN).
Emma had never read it, nor had she ever bought a
copy. But, when she opened it up, she was floored to see her own name and
address inside the cover in her own handwriting.It turned out that the summer
before, at a concert back in Montreal, Emma had met a Californian who was in
town visiting friends. They decided to exchange addresses, but neither of them
had any paper. The man opened up a book he was carrying in his backpack and
asked Emma to write her name and address inside. When he returned to California,
he left the book behind in Montreal, and his friend Alex kept it. When Alex
later moved to Jerusalcm, he took the book along.
1.Alex lent Emma the book, Markings,__________.
A.to show his
friendliness to her
B.to show his
interest in reading
C.to tell her
about the importance of UN
D.to let her
write her name and address inside
2.How did Emma feel the moment she opened the book?
A.Pleased. B.Satisfied.
C.Worried. D.Surprised.
3.We can learn from the text the Californian________.
A.met Emma at a
concert
B.invited Emma
to a concert
C.introduced
Emma to his friend
D.left Emma his
backpack
4.Who was supposed to be the first owner of the book?
A.An official
of the UN.
B.A coffee shop
owner.
C.A friend of
the author’s.
D.Alex’s friend from California.