A. what
Đáp án B
what: cái gì which: cái mà
how: như thế nào when: khi mà
in several European countries is only one example of (33)___________trade can promote the spread of dangerous diseases
[ Ở một số nước châu Âu chỉ là một ví dụ của thương mại có thể thúc đẩy sự tràn lan của các căn bệnh nguy hiểm như thế nào.]
When compared with implements "flaked with a counter-clockwise rotation”, it can be inferred that "implements flaked with a clock-wise motion" are ______________.
The author mentions “fish” in the first paragraph because __________________.
According to the passage, which of the following was an obstacle to the development of the icebox?
The word "substitutes" in paragraph 1 is closest in meaning to ________________.
The word “handheld” in the passage is closest in meaning to “______”.
Which of the following is NOT considered an essential characteristic of architecture according to the passage?
Salt in its solid state is not able to conduct electricity because ______.
According to the passage, when did the word "icebox" become part of the language of the United States?
The latest invention mentioned in the passage is the invention of ______.
The word "congested" in paragraph 1 is closest in meaning to ________________.
Which of the following could best serve as the title of the passage?