下列描述与实际情况相符的是（　　）

阅读理解，根据短文选择正确的一项

    One day a policeman was walking in the park. He saw a man there. The man was holding a penguin（领着一个企鹅）. The man said to the policeman, “ I found this penguin this morning. What shall I do with it?”“Take it to the zoo,” said the policeman. The next day the policeman saw the man again. He was still holding the penguin. The policeman said, “Why didn't you take the penguin to the zoo?”“I did,” said the man. “I took him to the zoo yesterday. Today I'm taking him to the cinema.

    Low-Cost Gifts for Mother's Day Gift

    Gift No. I

    Offer to be your mother's health friend. Promise to be there for any and all doctor's visits whether a disease or a regular medical check-up. Most mothers always say “no need,” another set of eyes and ears is always a good idea at a doctor's visit. The best part ? This one is free.

    Gift No. 2

    Help your mother organize all of her medical records, which include the test results and medical information. Put them all in one place. Be sure to make a list of all of her medicines and what times she takes them. “Having all this information in one place could end up saving your mother's life,” Dr. Marie Savard said.

    Gift No. 3

    Enough sleep is connected to general health conditions. “Buy your mother cotton sheets and comfortable pillows to encourage better sleep,” Savard said. “We know that good sleep is very important to our health.”

    Gift No. 4

    Some gift companies such as Presents for Purpose allow you to pay it forward this Mother's Day by picking gifts in which 10 percent of the price you pay goes to a charity (慈善机构). Gift givers can choose from a wide variety of useful but inexpensive things ---- many of which are “green” ---- and then choose a meaningful charity from a list. When your mother gets the gift, she will be told that she has helped the chosen charity.

①函数 $y=2sin\left(2x-\frac{\pi }{3}\right)$ 的一条对称轴是x= $\frac{5\pi }{12}$ ；

②函数y=tanx的图象关于点（ $\frac{\pi }{2}$ ，0）对称；

③正弦函数在第一象限为增函数；

④若 $sin\left(2x_1-\frac{\pi }{4}\right)=sin\left(2x_2-\frac{\pi }{4}\right)$ ，则x₁﹣x₂=kπ，其中k∈Z；

⑤函数f（x）=sinx+2|sinx|，x∈0，2π的图象与直线y=k有且仅有两个不同的交点，则k的取值范围为（1，3）．

以上五个命题中正确的有____（填写所有正确命题的序号）

对历史人物的评价是一个永恒的历史课题。请根据以下材料回答问题

⑴秦始皇，有人说他是千古一帝，有人说他是残酷的暴君。对此你有什么看法？请用史实说明你的观点。
⑵这是唐朝皇帝武则天陵墓前的无字碑。作为中国历史上唯一的女皇帝，历史上称其统治为“政启开元，治宏贞观”。这句话应该怎样理解？
⑶ 清朝康熙帝六岁登基,在位六十年，政绩显赫，请问他为保卫国家领土完整，反抗外来侵略做了哪些努力?
⑷由此，你认为我们应该怎样科学正确地评价历史人物？