PKMzeta是500多种蛋白激酶中的一种，负责强化和保持大脑神经元突触间的信息传递和处理，从而实现大脑的长期记忆。近期，国外的研究者做了一项实验，他们让老鼠喝含糖精的水，然后给它们注射让其感觉恶心的物质，让老鼠对糖精水产生厌恶。之后，通过向老鼠味觉所在的中脑区域—脑岛皮质注射PKMzeta的抑制剂ZIP酶，发现可以随时消除它们的不良记忆。这段文字主要讲述的是()。
A. 老鼠长期汜忆可以被消除
B. 长期记忆的机制
C. PKMzeta在保持记忆中的作用
D. ZIP酶的独特作用
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Women seek help for eating disorders more often than men.
A. YES
B. NO
C. NOT GIVEN
The company wants to avoid any______questions about its finances.
A. embarrassing
B. articulate
C. fabulous
D. instructive
What happened to him when he came back to his car？
A. The manager called him.
B. His books were stolen.
C. He saw a man coming to his car.
Summer is______season of the year.
A. hotter
B. the hotter
C. the hottest
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