Areas of fertile soil called deltas, usually （） are formed by mud deposited at the mouth of a river.
A: triangular in shape
B: their shape is triangular
C: they have a triangular shape
D: triangular shape
A: triangular in shape
B: their shape is triangular
C: they have a triangular shape
D: triangular shape
举一反三
- Which tooth has a root twice the length of the crown, and the shape of the cross section of the root is oval triangular? () A: The maxillary central incisor B: The mandibular central incisor C: The maxillary canine D: The mandibular canine E: The maxillary first premolar
- a worthy monument —— triangular
- Which tooth has a root twice the length of the crown, with an oval<br/>triangular shape at the cross section of the root: () A: The<br/>maxillary central incisor B: The<br/>mandibular central incisor C: The<br/>maxillary canine D: The<br/>mandibular canine E: The<br/>maxillary first premolar
- In shape and structure, the large one is usually called the daybed, and the small one is called the bed.
- 中国大学MOOC: The smooth triangular part at the base of bladder is called________________.