根据短文内容选择正确答案。

    Mrs. Smith is Jim's mother. She loves her family very much.  She goes to the store every day. She often buys food, fruit and clothes for Jim and her husband. Now many clothes are on sale at Renmin Clothes Store. They are very cheap. Mrs. Smith comes to the store and she wants to buy some clothes for her family. There they have sweaters in all colors for ￥15 each and sports shoes for only ￥28. Mrs. Smith likes the red sweater and she buys one for herself. She buys a pair of sports shoes for her son. The great T-shirts in the store are just ￥18!  She buys a white one for Mr. Smith. And that's not all. The socks, in all colors, are ￥2 each. She buys the socks in many colors for her family. She is really a Rood mother and a good wife (妻子).

体温调节中枢和体温感觉中枢分别在

真菌被称为真核生物是因为（　　）

铜及其化合物在生活、生产中有广泛应用．请回答下列问题：

（1）自然界地表层原生铜的硫化物经氧化、淋滤作用后变成CuSO₄溶液向地下深层渗透，遇到难溶的ZnS，慢慢转变为铜蓝（CuS）．写出CuSO₄转变为铜蓝的离子方程式　____ 。

（2）工业上以黄铜矿CuFeS₂）为原料，采用火法熔炼工艺生产铜的中间过程会发生反应：2Cu₂O+Cu₂S6Cu+SO₂↑，该反应的氧化剂是　____ ；验证反应产生的气体是SO₂的方法是____。

（3）图I是一种新型燃料电池，它以CO为燃料，一定比例的Li₂CO₃和Na₂CO₃熔融混合物为电解质，图II是粗铜精炼的装置图，假若用燃料电池为电源进行粗铜的精炼实验．

①写出A极的电极反应式　____ 。

②要用燃料电池为电源进行粗铜的精炼实验，粗铜板应与____ 极（填“A”或“B”）相连；若粗铜中还含有Au、Ag、Fe，它们在电解槽中的存在形式和位置为　____ 。

③当消耗标准状况下1.12LCO时，精铜电极的质量变化情况为____ 。

（4）现向一含有Ca²⁺、Cu²⁺的混合溶液中滴加Na₂CO₃溶液，若首先生成CuCO₃沉淀，根据该实验可得出的结论是　____ （填序号）

A．Ksp（CuCO₃）＜Ksp（CaCO₃） B．c（Cu²⁺）＜c（Ca²⁺）

C．＞D．＜．