培养布氏杆菌应接种于A．吕氏培养基 B．罗氏培养基 C．LB平板 D．双相肝浸液培养

In every little girl’s toy box. there might be a Barbie Doll. Barbie is 50 years old this, year. It was designed(设计)in 1959 by an American businesswoman named Ruth Handler. She and her husband Elliott started the toy company Mattel. She named the new doll after their daughter Barbara. The first Barbie Doll appeared at the toy fair（交易会）New York on March 9th, 1959. This date is used as Barbie’s birthday.

Mattel sold three hundred thousand Barbie Dolls in the first year at a price of three dollars. Today, a fifty-year-old Barbie in good condition might cost more than twenty-seven thousand dollars. Mattel says 90% of the girls in the United States aged from three to ten own at least one Barbie Doll. And girls aged three to six own an average（平均）of about twelve.

When Mattel created Barbie Dolls half a century ago, they never thought this doll would become a legend. Now Barbie Dolls are famous all over the world. They are sold in one hundred and fifty countries, and every second three Barbie Dolls are sold around the world.

小题1:Who designed the first Barbie Doll in 1959?

A．Mattel.

B．Elliott.

C．Barbara.

D．Ruth Handler.小题2:A Barbie D011 cost _______dollars in the first year after it appeared.

A．3

B．50

C．90

D．27,000小题3:What does the underlined word “legend” mean in the passage?

A．传播

B．传奇

C．传承

D．传达小题4:The writer doesn’t tell us _______.

A．Barbie Dolls are very popular with girls

B．Barbie Dolls sell well around the world

C．what the first Barbie Doll was based on

D．the doll Barbie was named after Barbara小题5:What’s the best title of the passage? ______.

A．Barbie’s birthday

B．Barbie Dolls

C．A lovely girl named Barbie

D．Why are Barbies popular

下图表示某植物正常体细胞的染色体组成，下列可能是该植物基因型的是

A．ABCD

B．AaaaBbbb

C．AaBbCcDd

D．AaaBbb

新生儿胎粪的特点是

A．褐色、干厚
B．金黄色、糊状
C．陶土色、软膏状
D．淡黄色水样便
E．墨绿色、黏稠状

被称之为湖南“硅谷”是哪个城区？

预收账款与应付账款虽然均属于负债项目，但与应付账款不同，它通常不需要以货币偿付。( )