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【判断题】
随机变量和的方差一定等于方差之和.( )A.
正确
B.
错误
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【简答题】(2019年山东春季高考)Susan is ________honest ________every one in our class believes her.A. so; that B. such a; that C. such; that D. such an; that
【单选题】(2019年山东省春季高考,6)--Mike, do you go jogging? -- Twice a week.
A.
How far
B.
How soon
C.
How often
D.
How long
【单选题】class Employee; class Manager extends Employee; class Director extends Employee;
A.
Employee e=new Manager();
B.
Director d=new Manager();
C.
Director d=new Employee();
D.
Manager m=new Director();
【单选题】(2019年山东春季高考)—________ amazing the Hong KongZhuhaiMacao Bridge is! —So it is.
A.
How
B.
What
C.
What a
D.
What an
【单选题】(2019 年山东春季高考 )Nowadays about 70% of the energy used in this city ________ from oil and gas.
A.
come
B.
comes
C.
have come
D.
had come
【单选题】()2019年山东省春季高考,8)Mr. Green is satisfied his students' progress.
A.
with
B.
in
C.
on
D.
at
【简答题】A．As a valuable employee. B．As an unqualified employee. C．As an average employee. D．As a troublesome employee.
【简答题】A．As a valuable employee. B．As an average employee. C．As an unqualified employee. D．As a troublesome employee.
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