单项选择题

The Victorian periord was noted for its rather stern morality.

A．对
B．错
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单项选择题
在镗削平面时，镗刀应尽量装在镗床的（）。
A.主轴锥孔内
B.主轴外径上
C.平旋盘上
单项选择题
Which of the following statement is NOT true for apoptosis? ( ) A、The cytoplasmic membrane is not broken B、DNA fragmentation C、There are many autophagosomes D、Lysosomal enzymes increased E、Mitochondrial swelling
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