题目内容
（请给出正确答案）
[主观题]
_______ years of enormous government support, few urban public transportation systems
run at a profit.
A.Based on
B.Due to
C.Because of
D.In spite of
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题目内容
（请给出正确答案）
如果结果不匹配，请 联系老师 获取答案
题目内容
（请给出正确答案）
A.Based on
B.Due to
C.Because of
D.In spite of
如果结果不匹配，请 联系老师 获取答案
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设有职工基本表：EMP(ENO，ENAME，AGE，SEX，SALARY)，其属性分别表示职工号、姓．名、年龄、性别、工资．为每个工资低于1800元的男职工加薪300元，试写出这个操作的SQL语句．
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Jet belts and rocket belts were developed ______.
A．20-30 years ago
B．50 years ago
C．recently
D．30 years ago
It took______ for the world to increases its population from 1 billion to 4 billion.
A．100 years
B．145 years
C．1975 years
D．over two million years
How long did it take for Hollywood to be famous to the world？
A．10 years
B．20 years
C．30 years
D．40 years
The story ______ many years ago. ()
A．take place
B．took the place
C．took place
D．happen
I used to smoke ______but I gave it up three years ago.
A．seriously
B．heavily
C．badly
D．severely
For over a million years, our forefathers were basically______.
A．skillful sportsmen
B．successful farmers
C．runners and jumpers
D．cooperating hunters
Though I haven't seen him for years, I can ()his voice on the telephone.
A．realize
B．discover
C．accept
D．recognize
