Cho hàm số $ f\left( x \right)=\left( m-2 \right)x-2018 $ . Khẳng định nào sau đây là đúng
 
A.Với $ m
e 2 $ thì hàm số nghịch biến trên $ \mathbb{R} $.
B.Với $ m < 2 $ thì hàm số đồng biến trên $ \mathbb{R} $.
C.Với $ m
e 2 $ thì hàm số đồng biến trên $ \mathbb{R} $.
D.Với $ m < 2 $ thì hàm số nghịch biến trên $ \mathbb{R} $ .

Giá trị $ m $ để hàm số $ y=\left( 2m+1 \right)x+m-3 $ đồng biến trên $ \mathbb{R}. $
A. $ m < -\dfrac{1}{2}. $
B. $ m < \dfrac{1}{2}. $
C. $ m > \dfrac{1}{2}. $
D. $ m > -\dfrac{1}{2}. $

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
As an _______, Mr. Pike is very worried about the increasing of juvenile delinquency.
A.educate
B.educative
C.education
D.educator

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
In order to succeed at work, employees should have strong _________ to improve their practice skills.
A.promotion
B.support
C.profession
D.self-motivation

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
She was the first in her family to enjoy the privilege of a university _____.
 
A.schedule
B.technology
C.education
D.science

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Job _______ is a factor that people take into account when they look for jobs.
A.securely
B.secure
C.security
D.secured

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Lifelong learners can have more opportunities for career growth and quick _______ .
A.promote
B.promoted
C.promotion
D.promoting

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
It is a ______ course for those who want to work as a marketing agent.
 
A.two years
B.two - years
C.year of two
D.two-year

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Some people strongly believe that the _________ purpose of lifelong learning is self-improvement.
A.ending
B.ultimate
C.All answers are correct
D.lasting

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Thanks to Lifelong learning,people are more confident in their ability to learn, to work and to _____ information.
A.browse
B.upload
C.download
D.share