如果结果不匹配，请 
更多“con计算公式：（LFD1-LFD2）/2（）”相关的问题
A. sooner or later
B. pro or con
C. now and then
D. To take dancing lessons
E. Put him in prison
F. here and there
G. when will I get out of jail
H. Very much
A thief with a long record was brought before a judge.
Judge: Have you ever stolen things？
Thief. Oh, (56) .
对先张法和后张法的预应力混凝土构件，如果采用相同张拉控制应力σcon值，则 ()。
A 后张法所建立的钢筋有效预应力比先张法小
B 后张法所建立的钢筋有效预应力和先张法相同
C 先张法所建立的钢筋有效预应力比后张法小
According to the passage, what attracts man's greater attention？
A. Fly ash.
B. The construction of dams, bricks, and roads.
C. Extracting aluminum, silicon, and magnetic from ash.
D. The available technology.
The recordings differ from written stories in that
A．the tellers and the government are contributing together
B．the dialect, the low pitches, and the pauses are more revealing
C．the hearing and reading can help tell the stories
D．the power of watching someone write is more engaging
采用先张法预应力施工，钢筋长度70m，φ8钢筋，弹性模量2.0×105N/mm2，钢筋张拉控制应力为420N/mm2张拉程序采用0→1.03σcon，试计算钢筋的张拉力和张拉伸长量。
Assignable cause or special variation is:
A . is indicated when a point falls outside the control limits.
B . is indicated when a point falls outside the specification limits.
C . is indicated when a run of seven or more points fall above the center line of a standard control chart.
D . is indicated when a run of seven or more points fall below the center line of a standard control chart.
E . A, C, and D.
下列关于预应力混凝土结构的叙述，哪一条是错误的？()
A.由于施加了预应力，提高了抗裂度，故预应力混凝土构件在使用阶段都是不开裂的
B.预应力混凝土受弯构件的挠度比普通钢筋混凝土受弯构件的挠度小
C.假如张拉控制应力σcon相同，先张法施工所建立的混凝土有效预压应力比后张法施工低
D.预应力混凝土构件的抗疲劳性能比普通钢筋混凝土构件好
