颊骨颧弓骨折后骨折块移位方向主要取决于()。 A.骨折块上所附着咀嚼肌的牵引 B.致 发布时间:2017-05-15 18:05 │ 来源:www.tikuol.com 题型:单项选择题 问题: 颊骨颧弓骨折后骨折块移位方向主要取决于()。A.骨折块上所附着咀嚼肌的牵引B.致伤外力的方向和大小C.骨折线的方向和倾斜度D.骨折的部位E.重力的影响
题型:单项选择题 Questions 7 to 10 are based on the following conversation. At the end of the conversation, you will be given 20 seconds to answer the questions. Now, listen to the conversation.In a distance learning course, oneA.does not have to see the professors.B.also needs to take exams.C.reduces the learning expenses.D.must revise the schedule to attend the course. 查看答案