山西省报专升本到底有没有用

甲向乙借款并将自己的房子抵押给乙，并办理了抵押登记。抵押后甲又将该房屋出租给丙，因甲无力还款，乙欲行使抵押权。下列表述正确的是：( ）

A.甲与丙之间的租赁合同不具有效力，因为该房已抵押给乙
B.甲与丙之间的租赁合同具有效力，抵押权行使后租赁合同对新的受让人具有效力
C.甲与丙之间的租赁合同具有效力，但抵押权行使后租赁合同对新的受让人不具有效力
D.甲与丙之间的租赁合同效力未定

Sometimes I scratch my head when I read about the government′s efforts to improve schools:new standards and tests to be applied,strict teacher evaluations,and threats of school closures and?job losses．They frighten the school employees,not to mention the students．Instead of making people?unable to solve problems or try new ideas—which is what fear does to us—research on school reform?strongly suggests that policy-makers should encourage school leaders to take a more humane?approach．In their study on the reform efforts of twelve Chicago public schools,Bryk and Schneider
found that enabling positive social relationships between the adults was the key to successful school?improvement and that trust was at the heart of those relationships．
Trust in schools comes down to one thing:psychological safety or safety to speak one′s mind,to?discuss with openness and honesty what is and isn′t working,to make collective decisions．
Yet this kind of safety doesn′t come easily to schools．According to Bryk and Schneider,the?adults in school rely on each other to do their jobs correctly and with integrity(正直)．The challenge?is that our expectations are very diverse based on our unique backgrounds．
At one school where I taught,each teacher had different expectations about how much extra?effort teachers should put into their work—a big difference between the teachers who left after the?last bell and those who worked into the evening．And when expectations are unconscious or?unspoken,it becomes impossible for others to live up to them．
We also make assumptions about the intentions behind a person′s behavior．As we all know,assumptions are often wrong．For example,parents and teachers may think the principal made a?particular decision based on his career advancement rather than what′s best for the students．If we?don′t feel psychologically safe to question our assumptions and expectations,trust flies out the?window and our relationships suffer．


What is meant by trust in school?《》（）

A.Freedom to express one's views．
B.Extra effort teachers put into their work．
C.Independence of the teachers in schools．
D.Unconscious and unspoken expectations．

视觉适应表现为感受性（ ）。

A.提高
B.降低
C.有时提高有时降低
D.既不提高也不降低

青少年发展过程中充满矛盾、被称为“危机期”的时期是（ ）

A.童年期
B.少年期
C.青年初期
D.青年晚期