患者，女，61岁。右上肢内侧出现群集性水疱，呈带状排列，伴疼痛4天。皮疹色淡，疱壁松

　  The old man walked with a cane(拐杖) slowly into the restaurant. His poor jacket, patched (打补丁的) trousers, and worn-out shoes made him stand out from the usual Saturday morning breakfast crowd. Unforgettable were his pale blue eyes that were bright like diamonds, large rosy cheeks, and thin lips held in a smile.

He walked toward a table by the window. A young waitress watched him and ran over to him, saying, “Here, Sir. Let me give you a hand with that chair.”

Without a word, he smiled and nodded a thank you. She pulled the chair away from the table. Steadying(稳住) him with one arm, she helped him move in front of the chair, and get comfortably seated. Then she pushed the table up close to him, and leaned his cane against the table where he could reach it.

In a soft, clear voice he said, “Thank you, Miss.”

“You are welcome, Sir.” She replied. “My name is Mary. I’ll be back in a moment. If you need anything, just wave at me!”

After he had finished a hearty meal of pancakes, bacon, and hot lemon tea, Mary brought him the change, helping him up from his chair and out from behind the table. She handed him his cane, and walked with him to the front door. Holding the door open for him, she said, “Come back and see us, Sir!”

He nodded a thank you and said softly with a smile, “You are very kind!”

When Mary went to clean his table, she was surprised. Under his plate she found a business card and a note written on the napkin, under which was a $100 bill.

The note on the napkin read, “Dear Mary, I respect you very much, and you respect yourself, too. It shows by the way you treat others. You have found the secret of happiness. Your kind gestures will shine through those who meet you.”

The man she had served was the owner of the restaurant. This was the first time that she, or any of his employees, had seen him in person(亲自).

71. The relationship between the old man and Mary was ______. 

A. father and daughter                B. employer and employee

C. waiter and customer                         D. uncle and nephew

72. Based on the passage, all of the following words can be used to describe Mary except _____.

A. kind       B. considerate       C. helpful       D. calm

73. Mary ran over to the old man because _______.

A. the old man was the boss of the restaurant

B. she saw the old man had some difficulty moving and taking a seat

C. she was worried that the old man might cause trouble to the restaurant

D. the old man had asked her to wait on him

74. The man came to the restaurant _______.

A. to have breakfast

B. to see his employees

C. to find out how his restaurant was working

D. to see how Mary served customers

75. The words the man left on the napkin indicated that _______.

A. respecting others means respecting oneself

B. serving others is a respectable job

C. Mary would get a rise as a result of her kindness

D. Mary’s kind service would bring in more money for her

（12分）硫酸亚铁（FeSO₄·7H₂O)是一种重要的食品和饲料添加剂。实验室通过如下实验由废铁屑制备FeSO₄·7H₂O晶体：

①将5% Na₂CO₃溶液加入到盛有一定量废铁屑的烧杯中，加热数分钟，用倾析法除去Na₂CO₃溶液，然后将废铁屑用水洗涤2～3遍；②向洗涤过的废铁屑中加入过量的稀硫酸，控制温度在50～80 ℃之间至铁屑耗尽；③趁热过滤，将滤液转入到密闭容器中，静置、冷却结晶；④待结晶完毕后，滤出晶体，用少量冰水洗涤2～3次，再用滤纸将晶体吸干；⑤将制得的FeSO₄·7H₂O晶体放在一个小广口瓶中，密闭保存。

请完成下列问题：

（1）实验步骤①的目的是___________________，加热的作用是

_________________________。

（2）实验步骤②明显不合理，理由是

________________________________________________。

（3）实验步骤④中用少量冰水洗涤晶体，其目的是_________________；

__________________。

（4）经查阅资料后发现，硫酸亚铁在不同温度下结晶可分别得到FeSO₄·7H₂O、FeSO₄·4H₂O和FeSO₄·H₂O。硫酸亚铁在不同温度下的溶解度和该温度下析出晶体的组成如下表所示（仅在56.7 ℃、64 ℃温度下可同时析出两种晶体）。

硫酸亚铁的溶解度和析出晶体的组成

请根据表中数据作出硫酸亚铁的溶解度曲线。

（5）若需从硫酸亚铁溶液中结晶出FeSO₄·4H₂O，应控制的结晶温度（t）的范围为________。

在货物验收过程中，发现数量不符，若在损益范围内的，应该按照送货单数量入库。( )

简述推土机驾驶前的车辆主要检查工作有哪些？

关于消渴病的防治，下列哪项不正确（）

A.药物治疗

B.避免精神紧张

C.饮食清淡

D.可不限肉类等油腻食物

E.可适量进食谷物、蔬菜、豆类、瘦肉、鸡蛋等