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判断题

搅拌清酥类冷水面团需先将面粉过筛，再与盐、糖和黄油搅拌均匀，慢慢地加入水。
To make a crisp cold water dough, sift the flour, mix well with the salt, sugar and butter, and slowly add the water.
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错误

单项选择题

某人一侧心室舒张末期容积为125ml，搏出量为80ml，射血分数是（）

A.50%
B.55%
C.64%
D.60%
E.70%