The primary cause of these disasters is just that the river picked up a large amount of silt when flowing through the Loess Plateau in its middle __________________.
举一反三
- The river flows quietly in its upper reaches, however, in its middle reaches it splits the Loess ___________in half. Therefore, it carries a large amount of silt into the lower reaches.
- Yijun Terrace has natural terrain characteristics, its known as the( )? A: "Living fossils" on the Loess Plateau B: Historical memory of the Loess Plateau C: A representative work of farming civilization D: The artistic pinnacle of farming civilization
- （） at the school, a car picked him up to an unknown place. A: While arriving B: Having arrived C: When he arrived D: On its arrival
- The compressed air is admitted to each cylinder through a cam operated by starting air valve when the piston has just passed its （）.
- ______ at the school, a car picked him up to an unknown place. A: A) While arriving B: B) Having arrived C: C) When he arrived D: D) On its arrival