单项选择题

We can not be too careful in performing operation.

A．我们做手术越仔细越好。
B．我们做手术时不能太仔细。
C．我们手术试验达不到太仔细的程度。
D．我们做手术时不得不很仔细。
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单项选择题
41, Henning made the experiment in order to study ______.
A．how students remember English vocabulary by short-term memory
B．how students learn English vocabulary
C．how to develop students' ability in English
D．how long information in short-term memory is kept
单项选择题
Which of the following statements is TURE according to the passage
A．Information in short-term memory is different from that in long-term memory.
B．Long-term memory can be achieved only by training.
C．It is easier to test short-term memory than long-term memory.
D．Henning gave a separate test on vocabulary to his students.
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