In the life theme, the teacher organized .
A. fixing the time to recognize common fruits.
B. using a diagram to display the food's nutrition
C. inviting kids to eat some more
D. all of the above
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If you were a parent, you could sayafter the teacher introduced his/her theme activity to you.
A. You are welcome.
B. All excellent theme activity is expected
C. Not at all
D. That's all right.
以下选项中,属于有效克服沟通障碍的方法的是( )。
A. 明了沟通的重要性,明确沟通目的
B. 简化语言,明确沟通内容
C. 改进沟通态度,控制情绪,不要感情用事
D. 培养倾听的艺术
如果梁上某段承受均匀分布荷载,那么该梁段的挠曲线是
A. 四次曲线
B. 五次曲线
C. 三次曲线
D. 六次曲线
等截面直梁在弯矩最大的截面处, 一定是
A. 转角最大
B. 挠曲线曲率为零
C. 挠曲线曲率最大
D. 挠度最大