题目内容
Countries outside of East Asia are also feeling the loss of Chinese tourists.
查看答案
搜索结果不匹配？点我反馈
更多问题
In the United States, Tourism Economics has predicted a 28-percent drop in Chinese visitors.
The World Travel and Tourism Council says it usually takes 90 months for visitor numbers to recover after a virus outbreak.
液压缸采用差动连接时，若使两个方向的运动速度相等，则活塞杆与活塞直径之间的关系是（ ）
推力越大，液压缸的速度越大，即v=F/A 。
微信支付 
支付宝支付