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【单选题】
According to Professor Appelbaum, what is the important step to convince people it is possible to develop fish farming in desert?
A.
To inform. them fish farming is a lucrative industry worldwide as people seek more fish in their diet for better health.
B.
To rid them of the preconception that arid land is unfertile and useless.
C.
To help them with technical support.
D.
To persuade government to provide more economic support.
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参考答案:
举一反三
【单选题】下列各式计算正确的是
A.
(a+b) 2 =a 2 +b 2
B.
a 2 +a 3 =a 5
C.
a 8 ÷a 2 =a 4
D.
a?a 2 =a 3
【单选题】基础的埋置深度≥()m为深基础。
A.
2
B.
3
C.
4
D.
5
【单选题】The user Sue issues this SQL statement: GRANT SELECT ON sue. EMP TO alice WITH GRANT OPTION; The user Alice issues this SQL statement: GRANT SELECT ON sue. EMP TO reena WITH GRANT OPTION; The user Ree...
A.
Alice only
B.
Alice and Reena
C.
Alice, Reena, and Timber
D.
Sue, Alice, Reena, and Timber
【简答题】求下列函数的单调区间. (1)f(x)=3|x|; (2)f(x)=|x 2 +2x-3|。
【简答题】解释对称密码体制和公钥密码体制的特点和优缺点。
【单选题】AutoCAD中有几种设置当前图层的方法()。
A.
2
B.
3
C.
4
D.
5
【简答题】求下列函数的单调区间: (1)f(x)=x 4 -2x 2 +3; (2)f(x)=2x-lnx。
【单选题】田间校验一般设置( )个处理。
A.
5
B.
4
C.
3
D.
2
【简答题】求下列函数的单调递增区间: (1)y=( ;(2)y=2 .
【单选题】基础制动杠杆主要有( )种。
A.
2
B.
3
C.
4
D.
5
参考解析:
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