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【单选题】
Choose the technique or techniques as hook in the following paragraph One student looks at his neighbor ’ s exam paper and quickly copies the answers. Another student finds out the questions on a test before her class takes it and tells her friends. Still another student sneaks a sheet of paper with formulas written on it into the test room. What about you? Would you be tempted to cheat on an exam if you knew you wouldn ’ t get caught? According to a recent national survey, forty percent of American teenagers would cheat under that condition. What is causing the epidemic of cheating in our schools? Most students cheat on tests because they feel pressure to get into a good college, because they want to avoid the hours of studying they need in order to get high grades, or simply because they are not concerned with honesty.
A.
Questions
B.
Statistics
C.
Questions and Statistics
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【单选题】无菌检查法中,薄膜过滤法的滤膜孔径应不大于( )微米。
A.
0.15
B.
0.22
C.
0.45
D.
0.8
【简答题】利多卡因和布比卡因在酰氨基邻位存在两个甲基,由于_____影响,较难水解,所以其盐的水溶液比较稳定。
【简答题】利多卡因在酰氨基邻位存在两个甲基,由于 影响,较 水解,故其盐的水溶 比较 。
【单选题】无菌检查法中薄膜过滤法的滤膜孔径应不大于()微米
A.
0.15
B.
0.22
C.
0.8
D.
0.45
【简答题】利多卡因在酰氨基邻位存在两个甲基,由于________影响,较________水解,故其盐的水溶液比较________。
【简答题】利多卡因在酰氨基邻位存在两个甲基,由于()影响,较()水解,故其盐的水溶液比较A. 空间位阻B. 难C. 稳定
【简答题】利多卡因在酰氨基邻位存在两个甲基,由于 的影响,较难水解。
【判断题】无菌检查中采用薄膜过滤法,优先选择封闭式的薄膜过滤器,滤膜孔径应不大于0.45um,直径约为50mm。
A.
正确
B.
错误
【单选题】无菌检查法中薄膜过滤法的滤膜孔径应不大于( )μm
A.
0.15
B.
0.22
C.
0.8
D.
0.45
E.
0.5
【单选题】无菌检查法中薄膜过滤法的滤膜孔径应不大于()μm
A.
0.15
B.
0.22
C.
0.8
D.
0.45
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