Hiện tượng liền rễ ở các cây thông thể hiện mối quan hệ
A.cộng sinh.
B.hỗ trợ.
C.hợp tác.
D.cạnh tranh.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
The academic year in Vietnam is over _______ the end _______ May.
A.at / of
B.from / in
C.for / on
D.on / in

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
In the workplace, bad _______ of you by your managers and colleagues may negatively affect your career growth.
 
A.perception
B.perceiving
C.perceive
D.perceived

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Peter is trying his best to study in hope that he will _______ fame and fortune in the near future.
 
A.achieve
B.lose
C.move
D.run

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
_______ is the study of the Earth's physical features and the people, plants, and animals that live in different regions of the world.
A.Geography
B.Science
C.History
D.Technology

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