Dung dịch chứa chất nào sau đây không làm đổi màu quỳ tím

A. Glyxin

B. Metylamin

C. Axit glutamic.

D. Lysin

Read the following passage and mark the letter A, B, C, or D on your answer sheet to choose the word or phrase that bestfits each ofthe numbered blanks from 31 to 35

Left-handers are the odd ones out. Sure, lefties (31) ______up about 10 percent of the population - but, frankly, it seems like society has forgotten about them. Just consider all of the right-handed gadgets, awkwardly designed desks, and cooking tools that fit comfortably only in your right hand. What (32) ______someone to become a lefthand? Scientists aren’t exactly sure, but research points to a complex (33) ______between genes and environment While no exact set of “leftie genes” have been discovered, people who dominantly use their left hands do have more left-handed family members. And researchers have found different brain wirings in righties vs. lefties. But no matter (34) ______it is that drives someone to use their antipodal paw, science has also uncovered a particular set of personality traits that left-handed people tend to have. So for all of you lefties, leftie-loving righties, and ambidextrous folks out there - it’s time to brush up on your left-handed knowledge and help (35) ______an end to leftie discrimination once and for all.

Question 35:

A. put

B. bring

C. make

D. take

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

In 2018 there was a craze for Bitcoin mining in Vietnam due to the belief that it would bring impressive profits. 

A. inclination 

B. fever 

C. sorrow 

D. indifference 

Hãy điền các chất cần thiết vào vị trí có dấu hỏi (?) trong hình 22.2

Làm thí nghiệm như hình vẽ:

Hiện tượng xảy ra ở ống nghiệm (2) là:

A. Có kết tủa vàng.

B. Có kết tủa trắng.

C. Không có hiện tượng gì.

D. Có bọt khí.