采用插入式振捣棒振捣混凝土墙板时,每层浇筑厚度应为______。
A.150 mm
B.200 mm
C.240 mm
D.250~350 mm
参考答案:D
--- Could I use your bike for a while. Sam?
--- ________. I’m not using it.
A.I have no idea
B.Sure, go ahead
C.No. you can’t
D.Never mind!
易与小儿肠套叠混淆的疾病包括
A.细菌性痢疾
B.急性坏死性小肠炎
C.过敏性紫癜
D.Meckel憩室出血
E.上述疾病都可能