情景交际，选择合适的句子并把序号填写在横线上。

—How was your last Sunday,Sam?

— ____ I really had a good time.

—  ____

—I played ping-pong with my father. How about you?

— ____

—Oh. You're really hard-working! ____

—Yes, of course. I saw a film with my cousin on Sunday night.

—Really? ____

—Yes. It's about dinosaurs.It's very interesting.

函数y=tan(2x-$\frac{\mathrm{\pi }}{4}$)的周期是（　　）

【化学——选修2：化学与技术】苯酚和丙酮都是重要的化工原料，工业上可用异丙苯氧化法生产苯酚和丙酮，其反应和工艺流程示意图如下：

相关化合物的物理常数

回答下列问题：