判断题

无菌操作前20分钟打开紫外灯和通风设备并一直保持到操作结束。
正确
错误

【参考答案】

错误
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裂缝间纵向受拉钢筋应变不均匀系数ψ越小表明( )。 A.混凝土参加工作程度越高,受拉纵向钢筋应变越化幅度越大;B.混凝土参加工作程度越高,受拉纵向钢筋应变越化幅度越小;C.混凝土参加工作程度越低,受拉纵向钢筋应变越化幅度越小;D.混凝土参加工作程度越低,受拉纵向钢筋应变越化幅度越大。
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听力原文:W: How about going to the art gallery today? They are having a special exhibit of local artists including your favorite painter.M: I'd love to, if I can get this term paper out of my way.Q: What does the man mean?(18)A.He enjoyed the paintings too.B.He can't finish his term paper that day.C.He has to finish his term paper first.D.He has learned something about the artists.
A.M:
B.He
C.
B.He
D.
C.He
E.
D.He
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