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【单选题】
When making a comparision between the past and the present condition of a place , we might say ' It's gone to the dogs '. What does it mean ?A.
It is in a much better condition now than it was before .
B.
It is in almost the same condition now as it was before .
C.
It is in a much worse condition now than it was before .
D.
There are many dogs here now , but there weren't brfore .
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】以下选项中,可获得值为false的Boolean对象的是()。
A.
var a = new Boolean(1)
B.
var a = new Boolean(“abc”)
C.
var a = new Boolean(“true”)
D.
new Boolean()
【单选题】设a=1000,b=1000,以下选项中表达式的值肯定为True的是()
A.
a is b
B.
a==b
C.
not a and b
D.
not a or not b
【简答题】城市轨道交通系统可按功能分为两个子系统进行管理，一个是旅客运输服务系统，另一个是 。
【单选题】薄膜调压器的工作原理是：()
A.
利用进口压力的变化调节出口压力
B.
利用进口流速的的变化调节出口压力
C.
利用薄膜上下侧所承受的压差来调节出口压力
D.
以上都正确