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问题 单项选择题

在有煤尘或瓦斯的环境中爆破使用毫秒雷管时，总延期时间不得超过（），禁止使用秒或半秒延期雷管。

A.100ms

B.110ms

C.120ms

D.130ms

答案

参考答案：D

阅读理解
任务型阅读：根据短文内容，用简洁的句子或短语完成下列表格。
      This  is  a   photo   of   Kangkang’s  family .   There  are  8
people   in  his  family .   Look  !   The  young  woman  in  a  red  
dress  is  his  mother .  She  is  a  nurse  in  a  hospital .   The man
in  a  black  coatis  his  father.  He teaches English  in  NO.1 High
School .   The young man in  a blue shirt is his uncle.   He drives a
bus in ourcity (城市). The young woman  in a yellow T-shirt is his
aunt . She works in an office . They have a daughter. Her name is
Rose ,  she is only four years old .   His  grandparents  look  after
Rose at home .The boy in  a  white  shirt  is  Kangkang .   He is  a
student in No.1 High School. He has a happy family . He likes
them very much .
Family members 
ColthesJobs Workplaces
mother 1._______________a nurse a hospital
fathera black coat a teacher2._____________
uncle a blue shirt 3.______________
4.______________ a yellow T-shirt an office worker A office
Kangkang5.______________ A student
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单项选择题

猩红热的好发年龄哪种说法正确( )

A．2～8岁
B．3～12岁
C．1岁左右
D．任何年龄
E．2～5岁
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