下列关于动物细胞编程性死亡的叙述，正确的是

【名词&注释】

原癌基因(proto-oncogene)、动物细胞(animal cell)、政治制度(political system)、发达国家、欧洲经济一体化(european economic integration)、世界经济区域集团化(regional group of world economy)、共同之处、发生变化、木栓形成层(cork cambium)、异花传粉(cross pollination)

[单选题]下列关于动物细胞编程性死亡的叙述，正确的是

A. 细胞癌变属于细胞编程性死亡
B. 细胞编程性死亡属于正常生理过程
C. 细胞编程性死亡属于细胞分化过程
D. 细胞编程性死亡与基因表达无关

查看答案&解析查看所有试题

学习资料：

[单选题]What does the woman mean?

A. Cathy will be at the party.
B. Cathy is too busy to come.
C. Cathy is going to be invited.

[单选题]据图可以推断，从1982年到2004年该城区

A. 建筑物占地面积增加
B. 南北部道路密度差异加大
C. 商业区向城区中心集中
D. 空间形态没有发生变化

[单选题]（C）237 West Palmdale Boulevard

A. Fresno , Califormia93706
B. AmToy Corporation
C. Suite 15
D. TransAm Building
E. November 20, 2008
F. Dear Sirs,
G. As a concerned parent, I am writing to protest your recent advertisement for Electro—Rain seen in local media is California. So Schally, I am referring to newspaper and magazine ads （attached this letter） and had the week of November 15.
H. Children to your type of advertising in an immature way; that they shamble to understand how expensive some toys are for middle-class parent. Further, you product is violent in nature. Youth advertisement gives children the impression that it’s fine to have “two guns and laser eyes.”You also suggest that children need your toy protect them “when you go outside.” This is not a healthy attitude for children to have.
I. I hope you will stop advertising your product in such a way that may our children.
J. Sincerely yours,
K. （Mrs. ） Alma Hernandez
L. Enc
M. It’s here! Heady for You, Now! It’s Electro-Robo!
N. Every lay dreams of being in control of a robot, and AmToy can make your dream come true Electro-R0ho is the world’s first fully autocratic robot with radio control. Standing 80 centimeters tall, Electro-Robo is like a friend at home, He can walk, talk, and even shake your had! He has two guns and laser eyes to help you defend yourself when you go outside with him , Every boy needs Electro-Robo !
O. Ask your Mom and Dad to buy Electro-Robo for your birthday or for Christmas, which is coming up soon Imagine that you are in control of your friend for life, Electro-Robo!
P. Available at all toy stores and department stores NOW!
Q. 64. What is the purpose the letter?
R. To complain about a broken toy.
S. To oppose the advertising.
T. To order a gift for Chrisman.
U. To apply for a job in a toy company.

[单选题]20世纪80年代以来，世界经济区域集团化的发展进一步加速，亚太经济合作组织与北美自由贸易区相继问世。二者的共同之处在于 ①在欧洲经济一体化加快的背景下建立②由发达国家和发展中国家组成 ③成员国具有相同的社会政治制度 ④美国是这两个经济组织的重要成员国

A. ①②
B. ②④
C. ①②④
D. ①③④

[单选题]What can we learn from the last two paragraphs?

A. More time should be spent on computers.
B. Children should be forbidden from watching TV.
C. 'IV sets shouldn't be allowed in children's bedrooms,
D. Further studies on high-achieving students should be done

[单选题]桃和梨均属于假果。( )

A. 正确
B. 错误

[单选题]植物在某些情况下，自花传粉较异花传粉^{(cross pollination)}更优越。( )

A. 正确
B. 错误

[单选题]树皮剥去后，树就会死亡，是因树皮不仅包括周皮还有( )。

A. 栓内层
B. 木栓形成层^{(cork cambium)}
C. 韧皮部
D. 木质部

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