下面()不属于建筑市场的主体。A.建筑产品的需求者和生产者 B.咨询服务者 C.建筑

This is Mary. She is ten. She is in Beijing with her grandparents. Her parents are in the USA. Mary doesn’t have sisters or brothers.

Every morning, her grandfather Mr Lin brings带来 breakfast to Mary’s room. He knows Mary likes Beijing food very much.

Mary likes her grandfather and wants想 to thank him.

This morning, Mr. Lin takes breakfast to Mary’s room, but he can’t find his granddaughter.

“Mary, where are you ?”

“I’m here in the kitchen厨房.” Mary takes a hamburger with some vegetables蔬菜to her grandfather.

“Dear grandfather, thanks for your breakfast. And this is my breakfast for you. It’s good for your health.”

What a nice girl.

小题1:Where is Mary?

A. She is in the USA.   B. She is in Beijing       C. She is in Shanghai.

小题2:What’s Mary’s last name?

A. Lin               B. Li                  C.  Smith

小题3:What does Mary’s grandfather do every morning?

A. He takes Mary to school.

B. He brings a hamburger to Mary.

C. He brings breakfast to Mary’s room.

小题4:What does Mary take to her grandfather ?

A. A hamburger with some fruit.

B. A hamburger and some tomatoes 

C.A hamburger with some vegetables

小题5:Which is right?下面哪项陈述是正确的？

A. Mary likes hamburgers.

B. Mary is with her father

C. Mary likes her grandfather

65. The Chinese people _____ brave and hard-working. The Chinese _____ a brave and hard-working people.

A．is; are

B．are; are

C．are; is

D．is; is

Three hundred multiples of three are picked at random, and three hundred multiples of four are picked at random. Approximately what percentage of the six hundred selected numbers are even ？（）

A. 100%

B. 75%

C. 66%

D. 50%

E. 33%

下列证据中，能够作为承包商索赔有效证据的有（）。

A.招标文件

B.招标阶段现场考察时，招标人对承包人所提问题的口头解答

C.技术文件中提供的地质资料

D.工程师发布的书面指令

E.检查和试验记录

简述防止菌种退化的措施？