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【单选题】
生物工程的兴起标志着人们从认识生命活动的奥秘，到按照人们的愿望改造生物的巨大飞跃。下列选项中能正确说明生物工程技术应用的是（）A.
植物组织培养是指离体的植物器官或细胞进行脱分化形成新个体
B.
基因治疗目前正处在初期的临床试验阶段
C.
人工诱变、细胞工程、基因工程等对微生物进行定向改造
D.
植物体细胞杂交技术实施的过程中不需要对细胞进行筛选
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举一反三
【单选题】--I hear you __________ your project at the end of last week. --In fact, I __________ it by the end of last month. [ ]
A.
had finished; had finished
B.
finished; had finished
C.
had finished; finished
D.
finished; finished
【单选题】Lindy, ________ to be hear at 10 o’clock.
A.
must be sure
B.
is sure that
C.
will be sure
D.
be sure
【单选题】In Anthony O'hear's view, a well-mannered person ______.
A.
acts rashly when he is young
B.
tends to be bad-tempered in old age
C.
behaves with a sense of appropriacy
D.
attaches importance to his status
【单选题】In Anthony O' Hear' s view, a well mannered person
A.
acts rashly when he is young
B.
tends to be bad-tempered in old age
C.
behaves with a sense of appropriacy
D.
attaches importance to his status
【简答题】数据库技术产生年代? 2、数据库技术广泛应用和普及的年代? 3、什么是数据处理?什么是数据管理? 4、Data、DB、DBMS、DDL/DML、DBS、DBA这些缩写分别代表什么,各自的含义是什么?
【单选题】What is NOT mentioned as a reason to register on the website?
A.
To hear about sale offers on companion products
B.
To get advice on how to make use of products
C.
To solicit assistance to correct a malfunction
D.
To apply for a rebate on the product purchased
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