对在信访工作中做出优异成绩的单位或者个人，由哪里给予奖励？
参考答案：
由有关行政机关给予奖励。
新拌混凝土坍落度小于______，采用维勃稠度法测其和易性。
A．20mm B．15mm C．10mm D．5mm
I want to have a little ________________.
My mother cooks the meals in the ________________.
Look at the ________________. How beautiful it is!
I have a small ________________ on my table.