看图，回答问题。

1. How many chairs can you see?

    I can see ___________________________.

2. Where is the fridge?

    It's in the ___________________________.

3. Can you see a bed?

_____________________________________

4. How many rooms in the picture?

_____________________________________

5. Is the sofa in the study?

_____________________________________

下列叙述错误的是 [ ]

A．¹³C和¹⁴C属于同一种元素，它们互为同位素

B．¹H和²H是不同的核素，它们的质子数相等

C．¹⁴C和¹⁴N的质量数相等，它们的中子数不等

D．⁶Li和⁷Li的电子数相等，中子数也相等