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【单选题】
动物细胞在体外培养条件下生长情况是( )。A.
能无限增殖
B.
不能增殖分裂很快死亡
C.
经过有限增殖后死亡
D.
一般进行有限增殖后死亡，但少数情况下某些细胞发生了遗传突变，获得无限增殖能力
E.
以上都不是
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【单选题】Helen Keller was born on June 27, 1880 in Tuscumbia, Alabama to Captain Arthur and Kate Keller. Helen was healthy until the age of nineteen months when she developed a brain fever that may have been s...
A.
Helen Keller became disabled after the disease.
B.
Helen Keller learned to finger spell and read.
C.
Helen Keller never attended college.
D.
Helen Keller was born in Wisconsin.
【简答题】In the toys section, I noticed a small boy of about five years old, 1 (press) against his chest．He kept on touching the hair of the doll and looked very sad．I wondered 2 he wanted to give the doll to．...
【简答题】If an employee was having _1____________ , Michael was there telling the employee how to look on the ______2_________ side of the situation. 1) E ach morning when Mi chael w o ke up he would remind hi...
【简答题】When I was nine , my father was ill．I can remember my mother’s words ___16___ it were yesterday: “Kerrel, Your father has ．Be very ____17___ when you are around him.” wasn’t something we talk...
【单选题】Famous as he was, he was reluctant to be the _____ of public attention. [ ]
A.
focus
B.
middle
C.
key
D.
point
【单选题】下列作者、课文及其出处搭配有误的一项是
A.
司马迁—《陈涉世家》—《史记》
B.
吴敬梓—《范进中举》—《儒林外史》
C.
鲁迅—《社戏》—《朝花夕拾》
D.
纪伯伦—《浪之歌》—《泪与笑》
【单选题】听力原文：W: Did you throw away the extra paper? M: No, I gave half of it to a friend and kept the rest. Q: What was done with the extra paper? (8)
A.
He gave half of it to his friend.
B.
He threw half of it away.
C.
He kept all the paper.
D.
He threw half of it away and kept the rest.
【简答题】在C语言中的三个逻辑运算符中的最高优先级的运算符是_____.
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