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【单选题】
下列关于switch语句描述中,正确的是?A.
switch 语句中default子句是可以省略的
B.
switch 语句中case子句的语句序列中必须包含break语句
C.
switch 语句中case子句后面的表达式可以是含有变量的整型表达式
D.
switch 语句中子句的个数不能过多
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举一反三
【单选题】When in his rebellious years, that is when he was sixteen or eighteen, Frank Anderson ______ going around with a strange set of people and staying out very late.
A.
took to
B.
took up
C.
took on
D.
took in
【单选题】Jack is _________years old. Today is his _________ birthday.
A.
sixteenth; sixteen
B.
sixteen; sixteen
C.
sixteen; sixteenth
D.
sixteenth; sixteenth
【简答题】A．Six weeks, B．Six months. C．Six years. D．Six years.
【单选题】I think __________ should be allowed to drive.
A.
sixteen year old
B.
sixteen-year-olds
C.
sixteen years old
D.
sixteens year old
【单选题】The spacecraft will make a journey of over ______ years.
A.
six
B.
nine
C.
twelve
D.
sixteen
【单选题】________ should not to be allowed to work at night.
A.
Sixteen-year-olds
B.
Sixteen-years-old
C.
Sixteen year olds
D.
Sixteen-years-olds
【单选题】Daming is a _____ boy. [ ]
A.
sixteen year old
B.
sixteen years old
C.
sixteen-years-old
D.
sixteen-year-old
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