问题
单项选择题 A1型题
下肢深静脉血栓形成最常见的类型是()
A.周围型
B.中央型
C.混合型
D.继发型
E.原发型
答案
参考答案:C
下肢深静脉血栓形成最常见的类型是()
A.周围型
B.中央型
C.混合型
D.继发型
E.原发型
参考答案:C
Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.
One-quarter of today’s student population are suffering from symptoms of depression. Of that group, almost half will experience depression intense enough to call for __43___ help. But many reject that idea, because they don’t want people to think there is something wrong with them. There are three reasons why today’s college students are suffering more than in earlier ____44___. First is a weaker f ![]() Another problem is __46_____ pressure. In the past ten years education costs have risen about 66 percent at public colleges and 90 percent at private schools. __47_____, most students must work part-time. A final cause of students’ depression is the large __48_____ of majors available. Because of the difficulty of ___49___ a major, college can prove a time of great indecision. Many students ___50____ majors. As a result, it is becoming common for them to take five or six years to get a degree. It can be disappointing to students to be faced with the __51____ costs. |