问题
单项选择题
大板房墙板与楼板、屋面板、基础之间的水平接缝必须坐浆，楼板下面应坐垫砂浆，楼板上面应做挤浆填缝，砂浆缝厚度不大于（）。
A.10mm
B.20mm
C.30mm
D.40mm
答案
参考答案：B
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大板房墙板与楼板、屋面板、基础之间的水平接缝必须坐浆，楼板下面应坐垫砂浆，楼板上面应做挤浆填缝，砂浆缝厚度不大于（）。
A.10mm
B.20mm
C.30mm
D.40mm
参考答案：B
I am a single mom and have a child. Knowing that I could not __21__ to get him anything at all for his birthday, I felt broken-hearted. __22__ I decided to post a(n) __23__ on “Wish Upon A Hero” website for people to __24__ my son birthday cards. I knew he loved to __25__ the mailbox and always asked if there was anything for him. I __26__ that if he could get a few cards, it would make him smile and maybe, just maybe, he wouldn't be so __27__ that I wasn't able to get him anything. The cards just started __28__ in and my little sweetie was __29__ excited! Every day more and more cards came and this went__30__ for about three weeks. The smile on his face and the sparkle in his eyes brought me to __31__. At the end of November, he started thinking about Christmas and he __32__ knew that there would not be much under the tree for him due to my __33__，but it didn't seem to __34__ to him. All he talked about was how much he wanted to make other children __35__. He decided that what he wanted to do was earn money to buy Christmas cards and send them to other children from __36__ families. My son went out daily to make money. Not only did he make the money to buy the cards, but he also made enough money to buy all the stamps and lollipops (棒棒糖) to put in the __37__. He sent out about 100 cards. Doing this __38__ him the same smile and sparkle in his eyes as the birthday cards that he had received did. I was and am so __39__ of him. My son and “Wish Upon A Hero” have given me renewed __40__ that there are still people in this world that care about others.
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