1946年，国民政府与美国签订《中美友好通商航海条约》。条约规定：中美两国国民相互在对方国家享有居住、旅行、经商、租赁土地、文化教育、宗教等各方面同等的权利；在进出口贸易中享有平等的税率；双方军舰可以在对方口岸、领水内自由航行。对以下该条约性质的判断，最恰当的是（　）

①是进行文化生产和传播的过程    ②体现了学生对真善美的追求

③会使学生形成相同的思维方式    ④是塑造学生健全人格的过程

增加：在缺词处加一个漏字符号（∧），并在此符号下面写出该加的词。

删除：把多余的词用斜线（＼）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1). 每处错误及其修改均仅限一词；

2). 只允许修改10处，多者（从第11处起）不计分。

    Alice, my closest friend, devotes many energy to her lessons all day long. She is always one of the top student in our class. She loves the music so much that she made it a rule to enjoy some pop songs in her spare time. Alice is always willing to help other, and she often helps us with our lessons. As an enthusiastic volunteer, she has successful organized varieties of voluntary activities. We paid visit to a nursing home last month, so we picked up rubbish near our school. That we did was warmly welcomed by the staff in the home. Win honour for our school, Alice is admired by our classmates.

在实数﹣7，0.32，$\sqrt{16}$，$\sqrt[3]{5}$，$\frac{22}{7}$，﹣$\frac{\mathrm{\pi }}{2}$中，无理数有____ 个．