问题
单项选择题
对混凝土强度的非破损、半破损检测方法有回弹法、起声法等，此项检测在（）的混凝土构件上进行。
A.未硬化
B.已硬化
C.标养28d
D.7d
答案
参考答案：B
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对混凝土强度的非破损、半破损检测方法有回弹法、起声法等，此项检测在（）的混凝土构件上进行。
A.未硬化
B.已硬化
C.标养28d
D.7d
参考答案：B
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| "What's the matter, mum?" As soon as I enter the door, I find that my mother is 1 . It's unusual-she usually opens the door and welcomes me with 2 . "She's dying," mum says sadly. I 3 what she says. The tulip (郁金香), mother's favourite, is dying. A month ago, we 4 into our new house and mum bought a very beautiful tulip. Mum liked it very much. 5 she was free, she would sit in her armchair beside the tulip and 6 its beautiful colour and inviting (诱人的) smell. She 7 it like a baby and looked after it 8 . She put the tulip by window and moved it from one place to another to give the tulip enough 9 . The first thing she did when she 10 every morning was to water the tulip. Mum also fertilized (施肥) it many times. She hoped that 11 great care, the tulip would become more and more beautiful and 12 . But the tulip was dying because of 13 sunshine, water and fertilizer. It's 14 that mother loved the tulip. But this kind of love can be 15 . Love can sometimes kill what you love. | ||||
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