选择题：U.S. stocks pared back ________ losses Wednesday a

题目内容：
U.S. stocks pared back ________ losses Wednesday after the Federal Reserve said the economy was "sluggish" even before last week's terrorist attacks. A A.descending
B B.abrupt
C C.downhill
D D.steep

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整根承受均布载荷的简支梁，在跨度中间处

整根承受均布载荷的简支梁，在跨度中间处A A.剪力最大，弯矩等于零B B.剪力等于零，弯矩也等于零C C.剪力等于零，弯矩为最大D D.剪力最大，弯矩也最大

分类：河南理工大学-机电一体化技术-大学英语3  题型：选择题
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