板式塔里的塔盘通过紧固结构是()。
A.双向可折
B.单向可折
C.不可折
参考答案:A
已知集合U={2,3,6,8},A={2,3},B={2,6,8},则(∁UA)∩B=______.
给句子排序。
( ) Let's have a look!
( ) Look! I see Ms. Zhang and my friends.
( ) Who is in my classroom?