A. 对 B. 错
A. She thinks the man should have helped earlier. B. She doesn’t need the man’s help. C. She doesn’t know the boxes are heavy. D. She wants the man to help with the boxes.
A. 切牙乳突区 B. 磨牙后垫区 C. 后堤区 D. 牙槽嵴顶区