有抗震要求的钢筋混凝土结构,对箍筋弯钩的弯折角度和平直部分长度有什么要求?
参考答案:
箍筋弯钩的弯折角度应为135°,箍筋弯后的平直部分长度不应小于箍筋直径的10倍。
根据上句完成下句,使两句表达的意思基本相同,每空一词。
1. Emma is like her aunt.
Emma and aunt ________ ________ ________.
2. How old is Lena?
________ Lena's ________?
3. Jack is Lily's good friend.
Jack and ________ ________ good ________.
4. They usually get to school at 8 o'clock.
They usually ________ ________ school at 8 o'clock.
5. Can I help you?
________ can I ________ ________ you?
形成室韧带的组织是()。
A.弹性圆锥
B.方形膜
C.甲状舌骨膜
D.三角膜
E.环甲膜