CuSO₄是一种重要的化工原料，其有关制备途径及性质如图所示．下列说法不正确的是（　　）

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已知角$\theta$满足$\frac{\sin \theta }{\tan \theta }>0$，且$\cos \theta ·\tan \theta <0$，则角$\theta$的终边在(    )

下列排序正确的一项是：（ ）。

①服用后使人的情绪、思维发生变化②致幻剂，是人类使用时间最长的毒品③改变时间观念，令身心失调④它存在于某种蕈类中，是印第安人在宗教仪式上使人产生幻觉的药物⑤其症状与精神分裂相似

Dear Mum,

    How are you?

    I'm very well in Shanghai. It's a beautiful city. I like the place. And I made a new friend. Her name is Huanhuan. She's got long and black hair. She's got big eyes. She is tall and thin. She's clever. But she is a bit shy. She likes English best. And she works hard. She often helps me. I miss you. I will be back next month.

Love,

Belinda