常年女性患者导尿,插入尿管多少厘米后,见尿再插1-2cm( )
A. 2-3cm
B. 4-6cm
C. 7-8cm
D. 7-9cm
E. 9-10cm
常年男性患者导尿,插入尿管多少厘米后,见尿再插1-2cm( )
A. 12-14cm
B. 14-16cm
C. 16-18cm
D. 18-20cm
E. 20-22cm
Directions: Read the five passages below and answer the questions following the passages by choosing the best answer from the four choices marked A), B), C) and D).Questions 1 to 6 are based on the following passage.【1】Engineering students are supposed to be examples of practicality and rationality, but when it comes to my college education, I am an idealist and a fool. In high school, I wanted to be an electrical engineer and, of course, any sensible student with my aims would have chosen a college with a large engineering department, famous reputation and lots of good labs and research equipment. Nevertheless, that is not what I did.【2】I chose to study engineering at a small liberal arts(文科) university that doesn't even offer a major in electrical engineering. Obviously, this was not a practical choice; I came here for more noble reasons. I wanted a broad education that would provide me with flexibility and a value system to guide me in my career. I wanted to open my eyes and expand my vision by interacting with people who weren't studying science or engineering. My parents, teachers and other adults praised me for such a sensible choice. They told me I was wise and mature beyond my 18 years, and I believed them.【3】I headed off to college sure I was going to have an advantage over those students who went to big engineering "factories" where they didn't care if you had values or were flexible. I was going to be a complete engineer: technical genius and sensitive humanist(人文学者) all in one.【4】Now I'm not so sure. Somewhere along the way, my noble ideals crashed into reality, as all noble ideals eventually do. After three years of struggling to balance math, physics and engineering courses with liberal arts courses, I have learned there are reasons why few engineering students try to reconcile (协调) engineering with liberal arts courses in college.【5】The reality that has blocked my path to become the typical successful student is that engineering and the liberal arts simply don't mix as easily as I assumed in high school. Individually they shape a person in very different ways; together they threaten to confuse. The struggle to reconcile the two fields of study is difficult.Why did the author choose to study engineering at a small liberal-arts university____?
A. He wanted to combine practicality with rationality.
B. He intended to embrace the opportunity of being enrolled by the university.
C. He could easily mix engineering courses with liberal arts courses.
D. He intended to grasp both engineering and liberal-arts knowledge.
Questions 19 to 24 are based on the following passage.【1】Call it the “learning paradox”, the more you struggle and even fail while you’re trying to learn new information, the better you’re likely to recall and apply that information later.【2】The learning paradox is at the heart of “productive failure”, a phenomenon identified by researcher Manu Kapur. Kapur points out that while the model adopted by many teachers when introducing students to new knowledge―providing lots of structure and guidance early on, until the students show that they can do it on their own ― makes intuitive sense, it may not be the best way to promote learning. Rather, it’s better to let the learners wrestle (较劲) with the material on their own for a while, refraining from giving them any assistance at the start. In a paper published recently, Kapur applied the principle of productive failure to mathematical problem solving in three schools.【3】With one group of students, the teacher provided strong “scaffolding” ― instructional support — and feedback. With the teacher’s help, these pupils were able to find the answers to their set of problems. Meanwhile, a second group was directed to solve the same problems by collaborating with one another, without any prompts from their instructor. These students weren’t able to complete the problems correctly. But in the course of trying to do so, they generated a lot of ideas about the nature of the problems and about what potential solutions would look like. And when the two groups were tested on what they’d learned, the second group “significantly outperformed” the first. The apparent struggles of the floundering (挣扎的) group have what Kapur calls a “hidden efficacy”: they lead people to understand the deep structure of problems, not simply their correct solutions. When these students encounter a new problem of the same type on a test, they’re able to transfer the knowledge they’ve gathered more effectively than those who were the passive recipients of someone else’s expertise.【4】In the real world, problems rarely come neatly packaged, so being able to discern their deep structure is key. But, Kapur notes, none of us like to fail, no matter how often Silicon Valley entrepreneurs praise the beneficial effects of an idea that fails or a start-up company that crashes and burns. So we need to “design for productive failure” by building it into the learning process. Kapur has identified three conditions that promote this kind of beneficial struggle. First, choose problems to work on that “challenge but do not frustrate”. Second, provide learners with opportunities to explain and elaborate on what they’re doing. Third, give learners the chance to compare and contrast good and bad solutions to the problems. And to those students who protest this tough-love teaching style: you'll thank me later.Which of the following sayings best justifies the “learning paradox” proposed by the author()?
A. No pains, no gains.
B. Practice makes perfect.
C. It’s never too old to learn.
D. Failure is the mother of success.