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【单选题】
关于纵模频率、纵模序数、纵模频率间隔的说法，不正确的是：A.
略微增加腔长，某个纵模的特征频率会也会增加。
B.
增大谐振腔的腔长，纵模频率间隔会变小。
C.
实际激光器振荡激光，其纵模序数一般很大。
D.
相邻纵模的频率间隔可由真空光速c除以往返光程来计算。
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【简答题】有逗号表达式 (a=3*5,a*4) ,则 a 的值为 ________ 。
【简答题】逗号表达式为”a=3*5,a*4”,则a+15的值为__ ,a的值为___。
【单选题】When Michael Phelps won another gold medal at the National Aquatics Center, _____ was likely that his dream of getting 8 gold medals at the Beijing Olympic Games was to be realized. [ ]
A.
which
B.
that
C.
it
D.
he
【简答题】一个基本磁盘最多可分为( ) 个主分区或( ) 个主分区和( ) 个扩展分区。
【单选题】—Do you know how many gold medals the 23-year-old Michael Phelps _______ at the 2008 Summer Olympic Games? —Eight. [ ]
A.
win
B.
wins
C.
won
D.
has won
【简答题】The native Canadians lived in ________ with nature, for they respected nature as a provider of life.
【单选题】The native Canadians lived in ________with nature, for they respected nature as provider of life.
A.
coordination
B.
acquaintance
C.
contact
D.
harmony
【简答题】一个基本磁盘最多可分为 个区,即 个主分区或 个主分区和一个扩展分区。
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