搜题请搜索小程序“爱下问搜题”
问题
单项选择题
参与伸髋并维持人的直立姿势的肌肉为
A．髂肌
B．臀大肌
C．腰大肌
D．臀中肌
E．缝匠肌
答案
参考答案：
B
解析：参与伸髋并维持人的直立姿势的肌肉为臀大肌。
选择题
When I came in, the children pretended ______ and no one even raised their eyes.
A. to study
B. have studied
C. to be studying
D. to have been studied
查看答案
判断题
人体的系统是由结构和功能相关的多种组织构成的。
查看答案
