预应力张拉过程中有可能出现断丝、滑丝现象,但全梁断丝、滑丝总数不得超过钢丝总数的()%,且一束内断丝不得超过一丝,也不得在同一侧。
A、0.5
B、1
C、2
参考答案:A
.—Let’s back up. Where was I?
—______.
A.You were in the kitchen.
B.You left your book at home.
C.You were having a rest.
D.You were talking about the cause.
提示子宫内膜对雌激素有反应的是
A.雌激素试验阳性B.雌激素试验阴性C.孕激素试验阳性D.孕激素试验阴性E.垂体兴奋试验阳性