单项选择题

弯曲时,梁内有一层既不受拉也不受压的纵向纤维就是中性层。

A.对
B.错
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单项选择题
用来帮助主光造型,弥补主光在表现上的不足,平衡亮度的光线,被称作轮廓光。 A、正确 B、错误
未分类题
Man: Can you believe it? Jessie told her boss he was wrong to have fired his marketing director. Woman: Yeah, but you know JessiE.If she has something in mind, everyone will know about it. Question: What does the woman mean?A.Jessie always says what she thinks.B.Jessie seems to have a lot on her minD.C.Jessie is wrong to find fault with her boss.D.Jessie should know the marketing director better.
A.Jessie
B.
B.Jessie
C.
C.Jessie
D.
D.Jessie
E.
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