上睑下垂表现为双眼向正前方注视时上睑缘遮盖角膜超过______。
参考答案：1／5(或2mm以上)
公安机关在刑事诉讼中的地位是侦查机关和刑罚执行机关。 ( )
Read and order. 你能把下面句子重新排列成一段通顺的对话吗？
( ) They are in the woods.
( ) What are you doing?
( ) I am watching my classmates.
( ) Where are they?
( ) No, they aren't. They are picking up leaves.
( ) Are they catching butterflies?
