问题 单项选择题

主要药理作用是扩张冠状动脉,增加冠状动脉血流的药物是()

A.氯沙坦

B.美托洛尔

C.卡托普利

D.阿司匹林

E.硝酸异山梨酯

答案

参考答案:E

解析:氯沙坦属于ARB类,卡托普利属ACEI类,均主要作用于外周小动脉,扩张冠状动脉的作用不显著。美托洛尔属β受体阻滞剂,治疗心绞痛主要是通过降低心肌耗氧量、减慢心室率、减少心脏氧耗,不直接扩张冠状动脉。阿司匹林为抗血小板聚集药物。硝酸异山梨酯为硝酸酯类药物,对冠状动脉有较强的扩张作用,可明显增加冠状动脉的血流量。

单项选择题
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选做题:阅读下面短文,并根据短文后的要求答题请注意问题后的词数要求。

     Called "The School of the Future" and created with help from software giant Microsoft, a recently-

opened public school in Philadelphia, US, is believed to be the first in the world to combine innovation

teaching methods with the latest technology. At this school, students work on wireless laptops, teachers

eschew traditional subjects for real-world topics and parents can track their children's work on the Internet.

     The school, which costs the school district $63 million to build, is free and has no entrance exams.

The 170 ninth-grade students were selected at random from l,500 applicants.

     Philadelphia School District Chief Executive Paul Vallas told students they would be observed by other

schools around the world. "You have become instant role models," Vallas said. "People are going to be

watching you."

     Students still sit in classrooms, but lessons rely heavily on information found on the Internet and on

interactive software. Students will be allowed to learn at their own pace. Homework is done on the computer

and sent to the teacher for grading and parents can access to the school's network to read the teacher's

feedback on their children's progress.

     Traditional education fails to teach students the skills of problem-solving, critical thinking and effective

communication, which they need to succeed in the 21st century, Principal Shirley Grover said in an interview.

"It's not about memorizing certain algebraic equations (代数方程式) and then presenting them in 8 test,"

Grover said. "It's about thinking how maths might be used to solve a quality of water problem or how it

might be used to determine whether or not we are safe in Philadelphia from the bird flu."

     David Terry, 14, said he was hoping to "turn over a new leaf" after discipline problems in his previous

school left him with an "average to really bad" academic record. "This is a great opportunity for me," he said.

"In other schools, I would not _____."

1. What's the best title of this passage? (Please answer within 10 words.)

    ______________________________________________________________________________________

2. Which sentence in the passage can be replaced by the following one? Although the students have their

    lessons in classrooms, they mainly learn through the Internet and on some software.

    ______________________________________________________________________________________

3. Please fill in the blank in the last paragraph with proper words or phrases to complete the sentence. (Please

    answer within 10 words.)

    ______________________________________________________________________________________

4. Do you think this kind of school good? Why? (Please answer within 30 words.)

    ______________________________________________________________________________________

5. Please translate the underlined sentence in the fifth paragraph into Chinese.

    ______________________________________________________________________________________