最早的金属期货交易诞生于（）。A．德国 B．法国 C．英国 D．美国

对性腺组织细胞进行荧光标记，等位基因A、a都被标记为黄色，等位基因B、b都被标记为绿色，在荧光显微镜下观察处于四分体时期的细胞。下列有关推测合理的是[ ]

A．若这2对基因在1对同源染色体上，则有1个四分体中出现2个黄色、2个绿色荧光点

B．若这2对基因在1对同源染色体上，则有1个四分体中出现4个黄色、4个绿色荧光点

C．若这2对基因在2对同源染色体上，则有1个四分体中出现2个黄色、2个绿色荧光点

D．若这2对基因在2对同源染色体上，则有1个四分体中出现4个黄色、4个绿色荧光点

自行车按行李、包裹托运时，规定每辆计费重量为（）千克。

A.40

B.30

C.25

D.20

—Jack used to give most of his money to people in trouble. How do you like him?

—Some thinks he might be kind of _______. But more people are grateful to him.

A．silly

B．unhappy

C．afraid

D．frustrating

Li Hua has just come back from the US and intends to give some of his relatives mentioned in 1-5 some books

as gifts. He brings back six books (A-F). After the description of each person, decide which book is the most

suitable one for the people and then mark the correct letter (A-F) on your answer sheet. There is one extra book,

which you do not need to use.

_______ 1.Li Hua's uncle is fond of reading story books. He reads all kinds of stories such as love stories,

historical stories, detective stories, etc. However, there is no doubt that science fiction stories are his favorites.

_______ 2.Li Hua's mother works for a local newspaper. She used to write a column (专栏) about love but

now she is making a survey about how much foreigners know about Chinese people and culture.She has been

collecting materials in China and from abroad.

_______ 3.Li Hua's father is a history teacher who is very interested in the history of China, especially China's

modern history. What's more, he pays special attention to the development of China's minority areas.

_______4.Li Hua's cousin is a senior middle school student who is going to take the College Entrance

Examination next year. But she is not good at English, especially English grammar. So she is looking for some

books which are helpful.

_______5.Li Hua's little brother is studying in a Middle School. He as well as some other students is going to

pay a visit to an American middle school and stay there for three week He is a little worried because he knows

nothing about American school life.

A. Into Tibet: The CIA's First Spy and His Secret Expedition to Lhasa (by Thomas Laird) This book introduces

the identity and specific spy activities of Douglas Mackiernan, the first CIA agent (中情局探员) who was killed

on duty by armed Tibetans. The author of the book based his description on detailed research based on the

memories of former CIA agents and interviews with related eyewitnesses in Tibet and India.

B. Practical English Usage (by Michael Swan) This book is a practical reference guide to language points. It

deals with over 600 points which regularly cause problems for foreign students of English. Most of the points

treated are grammatical, but there are also explanations of a certain number of common vocabulary problems.

Being a reference book, it contains information at various levels, ranging from relatively simple points to quite

advanced problems.

C. Battlefield Earth (by L. Ron Hubbard) An intelligent and creative masterwork of adventure in the far future,

L. Ron Hubbard's Battlefield Earth describes an Earth controlled for a thousand years by an alien invader-and

man is an endangered species. New York Times best-selling author L. Ron Hubbard has created a vast,

unforgettable and exciting world in Battlefield Earth.

D. Xu Ling's American Adventure ( by Mary Williams) Xu Ling is an excellent Chinese student from Hangzhou.

As his father goes to America for a one-year training, Xu Ling, as well as his mother goes with his father and

begins his new life in Eisenhower High School. The book consists of 21 chapters, each reflecting Xu Ling's

life in America in a different aspects. The book is written in the most fundamental words and is intended for

Chinese middle school students.

E. Chicken Soup for the Couple's Soul (by Jack Canfield and Mark Victor Hansen) This is a book for husbands

and wives and lovers and anyone who dreams of finding their soul's true mate (配偶). Each story in this book

was written by someone who has been transformed by love. Some stories will make you laugh. Some will make

you cry. But above all, the stories in this book sing high praise for love's ability to endure, beyond years, beyond

difficulty, beyond distance, beyond even death.

F. Where's the Duck in Peking? (by Cliff Schimmels) Whether you are a China expert or a novice, this book will

give you insight into the hearts and minds of the Chinese people. Cliff brings the reader to tears on one page and

belly laughter on the next. This profound look into China's everyday life is a must-read for anyone interested in

working in China or working with the Chinese people.

《选煤厂安全规程》规定，选煤厂应当制定事故应急救援预案，建立应急救援组织，配备必要的（）

A.急救器材

B.饮用水和食物

C.救护器材

D.药品