The word “those ” in paragraph 1 refers to _____.
B
Từ “ those” ở đoạn 1 ám chỉ đến
A. nitrat
B. các đặc điểm
C. các phân tử
D. các mô hình
Dẫn chứng: These nitrates have optical and chemical properties that are completely different from those of the originally dry dust particles .
=>Chọn B
What can be inferred about the White House from the information in the second paragraph?
The new research indicates that the neurons in the brain of migraine sufferers
Which is one of the main areas focused in the stress management program?
According to the author, the fact that more full-time students are working for pay ______.
Ạccording to the author, the fact that students have more time for leisure is a proof that ______.
Why does the passage begin with a description of the properties of calcium nitrate?