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【判断题】
随着时间的推移，数据库系统的应用环境会发生变化，但是数据库的安全性和完整性要求始终保持不变。()A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】If you ever have a chance to go to Finland(芬兰), you'll probably be surprised to find how 'foolish' the Finnish people are. You can go anywhere for one dollar, tell the driver to drop you at any place,...
A.
friendly
B.
crazy
C.
stupid
D.
funny
【单选题】----- What are you going to do this afternoon? ----- I’ll probably go for a walk later on _________ it stays fine.
A.
as far as
B.
so long as
C.
even if D as if
【单选题】. If you use another method to solve this problem, you’ll probably ______ it.
A.
make
B.
get
C.
finish
D.
take
【单选题】以下肯定不正确的函数定义是( )。
A.
double fun(int x, int y)
B.
z=x+y ; return z ; }
C.
double fun(int x,y)
D.
int z ; return z ;}
E.
fun (x,y)
F.
int x, y ; double z ;
G.
x+y ; return z ; }
H.
double fun (int x, int y)
I.
double z ;
J.
turn z ; }
【单选题】You are______ your money if you buy clothes that you'll probably never wear.
A.
spending
B.
giving
C.
wasting
D.
losing
【单选题】If you hire the right people， you‘ll probably be able __________. 查看材料
A.
to lose your house
B.
to manage your employees
C.
to keep independent
D.
to lend you money
E.
to take the responsibility for it
F.
to make profit
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