可引起球后视神经炎的疾病是（）。
A.上颌窦病变
B.额窦病变
C.前组筛窦病变
D.后组筛窦病变
E.蝶窦病变
参考答案：D, E
根据句意从方框中选择合适的短语并用其适当形式填空。
1. —When will you to your school? —Next Sunday.
2. Yesterday my mother me a new skirt.
3. If I get famous, people will me .
4.I when someone took away my football without telling me yesterday.
5. Will you to the old man?
什么是草坪“植生带”？
