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【单选题】
在阶跃型光纤中，当处于截止的临界状态时，其特性参数
A.
W ＝ 0
B.
β ＝ 0
C.
V ＝ 0
D.
U ＝ 0
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参考答案：
举一反三
【单选题】原文: On most measures, the children of married couples are already more likely to fare better than those with single parents.
A.
从大多数方面来看，婚生子女比那些有单亲父母的孩子更有可能获得成功。
B.
从大多数方面来看，婚生子女比与单亲父母生活的孩子更有可能获得成功。
C.
从大多数方面来看，父母已经婚的子女比与单亲父母生活的孩子更有可能获得成功。
D.
从大多数方面来看，婚生子女比单亲父母生的孩子更有可能获得成功。
查看完整题目与答案
【简答题】阅读理解： Most couples who get married or decide to live together generally plan to have children. Several years ago, people thought that having big families was common and this was seen as an advantage. ...
查看完整题目与答案
【单选题】Like most married couples we've had our ( ), but life's like that.
A.
fortunes and misfortunes
B.
sound and safe
C.
scrimp and save
D.
ups and downs
查看完整题目与答案
【简答题】Most married couples in China are subjected to 1. ______________ , which is introduced in 1979 to curb 2. ______________ population growth. It is believed to have pred 3. ______________ births si...
查看完整题目与答案
【单选题】若f=a*x^2+b*x+c是一个符号表达式,则symvar(f)的值是( )
A.
[a,b,c,x]
B.
[x,c,b,a]
C.
[x,a,b,c]
D.
[c,b,a,x]
查看完整题目与答案
【单选题】绝大多数微生物以( )营养类型为主。
A.
光能自养型
B.
化能自养型
C.
光能有机型
D.
化能异养型
查看完整题目与答案
【单选题】Like most married couples we ’ ve had our _______ , but life is always like that.
A.
determination
B.
sense
C.
ups and downs
D.
remark s
查看完整题目与答案
【单选题】下列符合西周时期社会经济现象的是( ) 1大量使用青铜农具2出现刺绣品3建立了邮驿传递制度4以贝作为货币 5用漆工艺装饰车
A.
①②③④
B.
②③④⑤
C.
②③⑤
D.
①③⑤
查看完整题目与答案
【判断题】Most new couples prefer to get married in June, just for its beautiful weather.
A.
正确
B.
错误
查看完整题目与答案
【单选题】Like most married couples we've had our , but life's like that.
A.
ups and downs
B.
up and down
C.
up and downs
D.
ups and down
查看完整题目与答案
相关题目：
【单选题】原文: On most measures, the children of married couples are already more likely to fare better than those with single parents.
A.
从大多数方面来看，婚生子女比那些有单亲父母的孩子更有可能获得成功。
B.
从大多数方面来看，婚生子女比与单亲父母生活的孩子更有可能获得成功。
C.
从大多数方面来看，父母已经婚的子女比与单亲父母生活的孩子更有可能获得成功。
D.
从大多数方面来看，婚生子女比单亲父母生的孩子更有可能获得成功。
查看完整题目与答案
【简答题】阅读理解： Most couples who get married or decide to live together generally plan to have children. Several years ago, people thought that having big families was common and this was seen as an advantage. ...
查看完整题目与答案
【单选题】Like most married couples we've had our ( ), but life's like that.
A.
fortunes and misfortunes
B.
sound and safe
C.
scrimp and save
D.
ups and downs
查看完整题目与答案
【简答题】Most married couples in China are subjected to 1. ______________ , which is introduced in 1979 to curb 2. ______________ population growth. It is believed to have pred 3. ______________ births si...
查看完整题目与答案
【单选题】若f=a*x^2+b*x+c是一个符号表达式,则symvar(f)的值是( )
A.
[a,b,c,x]
B.
[x,c,b,a]
C.
[x,a,b,c]
D.
[c,b,a,x]
查看完整题目与答案
【单选题】绝大多数微生物以( )营养类型为主。
A.
光能自养型
B.
化能自养型
C.
光能有机型
D.
化能异养型
查看完整题目与答案
【单选题】Like most married couples we ’ ve had our _______ , but life is always like that.
A.
determination
B.
sense
C.
ups and downs
D.
remark s
查看完整题目与答案
【单选题】下列符合西周时期社会经济现象的是( ) 1大量使用青铜农具2出现刺绣品3建立了邮驿传递制度4以贝作为货币 5用漆工艺装饰车
A.
①②③④
B.
②③④⑤
C.
②③⑤
D.
①③⑤
查看完整题目与答案
【判断题】Most new couples prefer to get married in June, just for its beautiful weather.
A.
正确
B.
错误
查看完整题目与答案
【单选题】Like most married couples we've had our , but life's like that.
A.
ups and downs
B.
up and down
C.
up and downs
D.
ups and down
查看完整题目与答案
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