问题
单项选择题
以下哪项是诊断大面积肺血栓栓塞症的必备依据
A．体循环动脉收缩压小于12kPa(90mmHg)，或较基础值下降幅度大于或等于5.3kPa (40mmHg)，持续15min以上
B．体温上升超38℃
C．血浆D-二聚体(D-dimer)升高
D．肺动脉高压
E．胸膜炎样胸痛
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
以下哪项是诊断大面积肺血栓栓塞症的必备依据
A．体循环动脉收缩压小于12kPa(90mmHg)，或较基础值下降幅度大于或等于5.3kPa (40mmHg)，持续15min以上
B．体温上升超38℃
C．血浆D-二聚体(D-dimer)升高
D．肺动脉高压
E．胸膜炎样胸痛
参考答案：A
| 任务型阅读。 Since many of you are planning to study at a college or university in this country, you may be curious to know what you usually do in a typical week, bow you can get along with your fellow students, and so on. These are the questions I want to discuss with you today. First, let's talk about what your weekly schedule will look like. No matter what your major may be, you can expect to spend between four and six hours a week for each class attending lectures. Lectures are usually in very large rooms because some courses such as introduction to sociology or economics often have as many as two or three hundred students, especially at large universities. In lectures, it's very important for you to take notes on what the professor says because the information in a lecture is often different from the information in your textbooks. Also, you can expect to have exam questions based on the lectures. So it isn't enough to just read your textbooks; you have to attend lectures as well. In a typical week you will also have a couple of hours of discussion for every class you take. The discussion section is a small group meeting usually with fewer than thirty students where you can ask questions about the lectures, the reading, and the homework. In large universities, graduate students, called teaching assistants, usually direct discussion sections. If your major is chemistry, or physics, or another science, you'll also have to spend several hours a week in the lab, or laboratory, doing experiments. This means that science majors spend more time in the classroom than non-science majors do. On the other hand, people who major in subjects like literature or history usually have to read and write more than science majors do. | ||||||||||
|