观察下面的世界三大宗教建筑物图，回答问题。

社会不断进步，世界日益开放，与不同文化共处成为我们面临的新课题。面对不同的文化，我们应该（    ）

①以开放的心态尊重不同的文化     ②宣传、弘扬我们的民族文化

③采取全部肯定和尊重的态度         ④取其精华，弃其糟粕

    A train stops at a station(车站). A young man wants to come out, but it is raining. A boy is standing under a big umbrella. The young man says to the boy，"Can you go and get us two hamburgers, one for you and one for me? Here are two dollars. " "Great！"says the boy and he goes to buy hamburgers. After some time, the boy is back. He is eating a hamburger. "Where is my hamburger？"asks the young man. "Oh, there is only one hamburger left(剩下). So I'm eating mine. Here is your dollar. "

- Can you go swimming with us this afternoon?

- I'd love to, but I ____________ take care of my mother because she is ill.

如图（甲）是家庭电路的一部分，电能表的表盘参数如图乙所示．L是“220V12W”的节能灯，插座上接入“220V 1200W”的电饭煲（图中未画出），灯和电饭煲同时正常工作．电饭煲加热时不计热量损失．（天然气的热值q=7×l0⁷J/m³，水的比热容c_水=4.2×10³J/（kg•℃））