受拉区钢筋绑扎搭接的设置要求()。
A.要有足够的搭接长度
B.接头不宜位于弯距最大处
C.钢筋的横向净距不应小于25㎜
D.接头应位于梁端箍筋加密处
参考答案:A, B, C
客厅中亮着一盏灯,突然停电了,小明按了32次开关发现灯还是不亮。到重新来电时,此时灯是[ ]
A.亮
B.不亮
C.无法确定
用适当的介词填空。
1. Scott usually gets_______ school at seven-thirty.
2. What does your mother usually do_______ the evening?
3.I like listening_______ music on the computer.
4. We often play sports_______ about 4:30 in the afternoon.