朗格汉斯细胞的结构特点有() A.光镜下细胞呈多角形,胞质透明 B.胞核较小并呈分叶

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问题:

朗格汉斯细胞的结构特点有()

A.光镜下细胞呈多角形,胞质透明

B.胞核较小并呈分叶状,线粒体、高尔基复合体、内质网丰富,并有溶酶体

C.电镜下细胞核呈扭曲状,无张力细丝、桥粒和黑素小体,胞质清亮

D.内有特征性的Birbeck颗粒

考点:上海住院医师中医外科外科住院医师外科住院医师题库
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下列关于唐朝与少数民族交往的叙述,不正确的一项是[ ]

A.唐太宗和武则天在今新疆地区先后设立了管辖西域的最高行政和军事机构

B.唐玄宗把文成公主嫁给松赞干布

C.吐蕃赞普上书唐皇帝说,吐蕃与唐朝已经“合同为一家”

D.唐玄宗册封过回纥、南诏和粟末·靺鞨的首领

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Jenny was a pretty five-year-old girl. One day when she and her mother were checking out at the grocery store, Jenny saw a plastic pearl (珍珠) necklace priced at $2.50. Her mother bought the necklace for her on condition that she had to do some homework to pay it off. Jenny agreed. She worked very hard every day, and soon Jenny paid off the necklace. Jenny loved it so much that she wore it everywhere except when she was in the shower. Her mother had told her it would turn her neck green!

Jenny had a very loving daddy. When Jenny went to bed, he would read Jenny her favorite story.

One night when he finished the story, he said, “Jenny, could you give me your necklace?”

“Oh! Daddy, not my necklace!” Jenny said. “But you can have Rosy, my favorite doll. Remember her? You gave her to me last year for my birthday. Okay? ”

“Oh no, darling, that’s okay.” Her father brushed her cheek with a kiss. “Good night, little one.

A week later, her father once again asked Jenny for the necklace after her favorite story. “Oh, Daddy, not my necklace! But you can have Ribbons, my toy horse. Do you remember her? She’s my favorite.”

“No, that’s okay,” her father said and brushed her cheek again with a kiss. “God bless you, little one. Sweet dreams. ”

Several days later, when Jenny’s father came in to read her a story, Jenny was sitting on her bed and her lip was trembling. “Here, Daddy,” she said, holding out her hand. She opened it and her beloved pearl necklace was inside. She let it slip into her father’s hand.

With one hand her father held the plastic pearl necklace and with the other he pulled out of his pocket a blue box. Inside the box was a real, beautiful pearl necklace. He had had it all along. He was waiting for Jenny to give up the cheap necklace so he could give her a real one.

小题1:What did Jenny have to do to get the plastic pearl necklace?

A.She had to help her mother do some housework.

B.She had to listen to her father tell a story every night.

C.She had to ask her father to pay for the necklace.

D.She had to give away her favorite toys to the poor children.小题2:From the text we know that ______.

A.Jenny’s mother paid a lot for the plastic pearl necklace

B.Jenny wore the necklace everywhere even in the shower

C.Jenny didn’t like Rosy and Ribbons any longer

D.Jenny got a real pearl necklace from her father小题3:Jenny’s father asked for her plastic pearl necklace repeatedly in order to ______.

A.get it for himself

B.donate it

C.train her character

D.put it away小题4:What can be the best title for the text?

A.A Lovely Girl

B.Father and Daughter

C.A Pearl Necklace

D.An Unforgettable Childhood

题型:多项选择题

毒蛇主要分为___________、__________、___________。

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柑桔保鲜剂的使用方法是()。

题型:多项选择题

用标准体积管在流量计正常工作的压力、温度条件下,用被流量计计量的液体至流量计进行现场实液检定,这就使检定条件和使用条件()

A、绝对相同

B、完全不同

C、基本不同

D、基本一致

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