题干

“抗体”是一种什么物质              (    )

A:糖类

B:脂类

C:蛋白质

D:无机盐

上一题 下一题 0.0难度 选择题 更新时间:2010-07-10 04:21:28

答案(点此获取答案解析)

C

同类题1

根据短文理解,选择正确答案。

    A lot of teenagers are good at art at school, but how would you feel if people called you “the new Picasso(毕加索)” or if presidents and other famous people collected your paintings?

    Alexandra Nechita was ten when her paintings became famous all over the world. She visited Britain, France, Italy, Japan, Australia, New Zealand and her family's native place (祖籍) Romania where 5,000 fans came to see her at the airport. Alexandra said, “When it all started, I was moved. It was very exciting and I loved the traveling, but I got very tired. And I missed home.”

    Alexandra is a good student. Her studies always come first. She only starts painting after she's done her homework. She works on two or three paintings at a time. The paintings sell for thousands and Alexandra's parents have given up their jobs to work for their daughter. Life for the Nechita family is very different from what it was like a few years ago. Alexandra's father Nike left Romania for political (政治的)reasons in 1985. At first he tried his best to learn English and had different kinds of low-paid jobs. In 1987, he brought his wife and Alexandra, who was then 18 months old, to America. The family was very poor. Alexandra began to draw at the age of three.

    She was drawing for four or five hours a day. Soon people offered(提出) to buy her paintings and she had her first art show at the age of eight. Stories about this child appeared(出现) in the newspapers and television. They now live in a large house with a swimming pool. Her mother said, “We started without anything, but thanks to Alexandra, we have everything we ever dreamed of.”

同类题4

阅读下面的文言文,完成文后各题。

    伍子胥者,楚人也,名员。员父曰伍奢,员兄曰伍尚。其先曰伍举,以直谏事楚庄王,有显,故其后世有名于楚。

    楚平王有太子名曰建,使伍奢为太傅,费无忌为少傅。平王使无忌为太子取妇于秦,秦女好,无忌驰归报平王曰:“秦女绝美,王可自取,而更为太子取妇。”平王遂自取秦女而绝爱幸之,生子轸,更为太子取妇。

    无忌既以秦女自媚于平王,乃因谗太子建。平王稍益疏建,使建守城父,备边兵。无忌又日夜言太子短于王曰:“太子以秦女之故,不能无怨望,且欲入为乱矣。”平王乃召其太傅伍奢考问之。伍奢曰:“王奈何以谗贼小臣疏骨肉之亲乎?”平王怒,囚伍奢,而使城父司马奋扬往杀太子。太子建亡奔宋。

    无忌言于平王曰:“伍奢有二子,皆贤,不诛且为楚忧。”使人召二子曰:“来,吾生汝父;不来,今杀奢也。”伍尚欲往,员曰:“楚之召我兄弟,非欲以生我父也,恐有脱者后生患,二子到,则父子俱死。何益父之死?不如奔他国,借力以雪父之耻,俱灭,无为也。”伍尚谓曰:“可去矣!汝能报杀父之仇,我将归死。”尚既就执,伍胥遂亡。

    至昭关,昭关欲执之。追者在后,至江,江上有一渔父乘船,知伍胥之急,乃渡伍胥。伍胥既渡,解其剑曰:“此剑直百金,以与父。”父曰:“楚国之法,得伍胥者赐粟五万石,爵执珪,岂徒百金剑邪!”不受。

    至于吴,吴王僚方用事,公子光为将。伍胥知公子光有内志,欲杀王而自立,乃进专诸于公子光。五年而楚平王卒,轸竟立为王,是为昭王。公子光乃令专诸袭刺吴王僚而自立,是为吴王阖闾。阖闾既立。乃召伍员以为行人。而与谋国事。四年,吴伐楚,伍员大破楚军于豫章。九年,阖闾悉兴师与唐、蔡伐楚,五战,遂至郢。昭王出亡。伍子胥求昭王,既不得,乃掘楚平王墓,出其尸,鞭之三百,然后已。

(节选自《史记·伍子胥列传》有删改)