预应力筋放张时,混凝土强度应符合设计要求;当设计无要求时,不应低于设计的混凝土立方体抗压强度标准值的()。
A.65%
B.70%
C.75%
D.80%
参考答案:C
重新排列句子使其成为一段完整的对话。
A. What's your favourite food?
B. Amy, it's time for lunch now.
C. I like tofu, too. But fish is my favourite.
D. Yes. It's 12 o'clock. Let's go to the canteen.
E. I like tofu very much. It's healthy for me.
F. OK. Some tofu and fish, please.
正确的顺序是: B __________________________________
患者自觉右眼涩痛畏光,白睛上小疱样颗粒隆起,周围绕以赤丝血脉。
根据症状,应诊断为()
A.椒疮
B.风赤疮痍
C.天行赤眼
D.金疳
E.火疳