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【单选题】
建立矩形施工控制网应符合下列规定：（1）矩形施工控制网边长应根据建筑物的规模而定，（）m。（2）矩形施工控制网的轴线方向与施工坐标轴线方向一致，矩形施工控制网的原点及轴线方位应与整个平面坐标系联测，其轴线点点位中误差不应大于50mm。（3）矩形施工控制网角度闭合差不应大于测角中误差的4倍。A.
10～50
B.
100～200
C.
300～400
D.
1000～2000
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皮皮学刷刷变学霸
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【简答题】开始关注提高学生的成绩，说明教师进入 _______阶段。
【多选题】Read the following statements. Then listen to a report and identify which of them are correct.
A.
If you think about your anger situation while using the destruction therapy, the therapy will be much more satisfying.
B.
If you don't deal with your anger, sooner or later it will explode.
C.
Laughter therapy can help people feel less pain.
D.
In Spain, some companies send their workers to build hotels when they feel that their workers are stressed, or they need to build a team.
E.
On average, children laugh up to 100 times a day, but adults only laugh about 17 times a day.