问题
单项选择题
下列关于冬期施工说法错误的是（）。
A.掺入混凝土的防冻剂，应经试验对比，混凝土表面不得产生明显色差
B.混凝土入模温度不得低于50度
C.混凝土施工过程中应有防风措施，当室外气温低于-10度时，不得浇筑混凝土
D.施工前，应编制冬季施工方案
答案
参考答案：C
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下列关于冬期施工说法错误的是（）。
A.掺入混凝土的防冻剂，应经试验对比，混凝土表面不得产生明显色差
B.混凝土入模温度不得低于50度
C.混凝土施工过程中应有防风措施，当室外气温低于-10度时，不得浇筑混凝土
D.施工前，应编制冬季施工方案
参考答案：C
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| When you're a teenager (青少年) it seems that every time you say, "I want to...", your parents answer, "No, you can't." Young people further complain that their parents do not 1 them. When something goes 2 , most parents just don't believe in their children. 3 asking why, they think their kids are wrong. And not many parents allow their kids to choose for themselves. Yes, 4 is true that your parents sometimes treat you as a little child. But remember that not long ago you were really a child. Your parents still remember the childish 5 you used to make. They want to protect you 6 you don't want them to do so. So, if you want to get 7 freedom (自由), please try to understand your parents and don't lie to them. Try a more friendly way. If you want them to 8 you to stay out late, don't just say "All 9 kids can stay out late." Tell them as much as you can about what you want to do and where you'll be and 10 it's important for you to stay out late. Then they just might say, "Yes". | ||||
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