受压杆件在下列支承情况下,若其他条件相同，临界力最大的是()
A.—端固定一端自由
B.—端固定一端铰支
C.两端固定
D.两端较支
参考答案：C
_________ a sports meeting in our school this Friday afternoon.
A．There is going to be
B．There will have
C．There are going to be
D．There is going to have
肾损伤保守治疗的护理措施不妥的是
A．定时留尿B．及时补充血容量C．鼓励早期活动，利于恢复D．危重患者尽量少搬动做检查E．观察血尿的次数、量及浓度
