现浇框架弯矩调幅系数β可以取0.5～0.9。梁端负弯距减小后，应按平衡条件计算调幅后的跨中弯距，且调幅后的跨中弯距不应小于简支情况跨中80%。
参考答案：错
It is said that by no means _____ to get into this laboratory without Mr. Jackson's permission. [ ]
A. can the students be allowed
B. the students can be allowed
C. con be the students allowed
D. can be allowed the students
在医患交往中，强调维护患者权益取决于
A．患者在信托关系中居于弱势地位
B．患者在信托关系中有明确要求
C．患者在信托关系中居于强者地位
D．医师对患者的承诺
E．医师对患者的关心
