3.You can tap the table to say thank you
查看答案
4.Using communal chopsticks is unnecessary when sharing food.
A. 对
B. 错
5.Chinese people think that it is polite to place food on other people’s plate.
A. 对
B. 错
肾盂肾炎是累及_______和__________的_________炎症。患者以____性居多
肾盂肾炎的感染途径主要有___________________和________________两条
微信支付 
支付宝支付