投快球时应该(),跑动方式跟田径运动员一样。
参考答案:直线助跑
阅读理解。
1. The picture is about ______.
A. fitness clubs
B. language clubs
C. dance clubs
2. What is the percentage (百分比) of students in the clubs?
A. 2.6%
B. 13.6%
C. 16.9%
适用于鼻内药物腐蚀疗法治疗脑脊液鼻漏的部位是()
A.筛板
B.筛顶
C.额窦
D.蝶窦
E.上颌窦