One evening, long after most people had gone to bed, a friend of mine and I were (21) our way hap...

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P沟道增强型MOS管和N沟道增强型MOS管 P沟道耗尽型MOS管和N沟道耗尽型MOS管 P沟道增强型MOS管和N沟道耗尽型MOS管 P沟道耗尽型MOS管和N沟道增强型MOS型

Go to bed earlier than usual. Talk with friends after dinner. Stay with friends after dinner. Do some mental work.

proved　　　　　　　　　　　　 proved to be proved of　　　　　　　　　　　 all the above

before long long after after long long before

found will find had found have found

blaming blamed to blame to be blamed

this one it that

before long long before after long long after

when before after since

结型场效应管绝缘栅型场效应管 N沟道增强型MOS管 P沟道增强型MOS管 N沟道耗尽型MOS管 P沟道耗尽型MOS管

gave out wore out ran out tired out

MOS得分为5，表示可完全放松，不需要注意力 MOS得分为4，表示中等程度的注意力 MOS得分为1，表示即使努力去听，也很难听懂 MOS得分为3，表示需要注意，但不需明显集中注意力。

before long long before after long long after

before long long before after long long after

before long long before after long long after