There is a delicate balance of nature ______ many square miles of ocean and vegetation and clean air are needed to maintain only a relatively few human beings.
A: where
B: in which
C: when
D: how
A: where
B: in which
C: when
D: how
举一反三
- Only when human beings live ____harmony with nature can we lead a better life. A: at B: on C: in D: with
- Which of the following statements describes the study of articulatory phonetics? A: It studies the sound transmission in the air. B: It studies how human beings perceive a sound. C: It studies how human beings produce a sound. D: It studies how human beings hear a sound.
- In the following, what is NOT mentioned as a principle for the designing of Chinese gardens? A: the principle of unity between nature and human beings B: the principle of balance C: the principle of harmony between nature and human world D: the principle of economy and efficiency
- 5W1H分别是？（） A: what、where、when、who、which、how B: what、where、when、why、which、how C: why、where、when、who、which、how D: what、why、when、who、which、how
- What is the theme of the story? ( ). A: Human beings are vulnerable in the nature. B: Human beings are superior to animals . C: Wolves are evil creatures that are dangerous to human beings. D: Human beings should treat animals like brothers with mutual respect.