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花序轴在开花期内可继续伸长，产生新的花蕾，花的开放顺序是由花序轴下部依次向上开放，或花序轴缩短，边缘向中心开放，这种花序称有限花序。A.
正确
B.
错误
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【单选题】count = 0while count < 5: print count, " is less than 5" count=count + 1else: print count, " is not less than 5"
A.
0 is less than 51 is less than 52 is less than 53 is less than 54 is less than 5
B.
0 is less than 51 is less than 52 is less than 53 is less than 54 is less than 55 is not less than 5
C.
0 is less than 51 is less than 52 is less than 53 is less than 54 is less than 55 is less than 5
【单选题】大部分财产保险的保险期限较短。通常普通财产保险的保险期限为（），并且保险期限就是保险人实际承担保险责任的期限。
A.
1年或者1年以内
B.
2年
C.
3年
D.
5年
【简答题】__________。 [A]more than [B]less than [C]than [D]rather than
【单选题】下列对肺的描述哪一项是错误的( )
A.
肺是进行气体交换的器官
B.
肺属实至性器官
C.
左右两肺分别居于左右胸膜腔内
D.
肺大体呈圆锥形，上为肺尖，下为肺底，又称膈面
【简答题】A．Less than two years. B．More than a year. C．Less than a year. D．More than two years.
【单选题】下列对肺的描述哪一项是错误的( )
A.
肺是进行气体交换的器官
B.
肺属实质性器官
C.
左右两肺分别居于左右胸膜腔中
D.
肺大体呈圆锥形，上为肺尖，下为肺底，又称膈面
【简答题】List famous places of interest in the world ( no less than 10).
【单选题】count = 0 while count < 5: print(count, " is less than 5" ) count=count + 1 else: print(count, " is not less than 5" )
A.
0 is less than 5 1 is less than 5 2 is less than 5 3 is less than 5 4 is less than 5
B.
0 is less than 5 1 is less than 5 2 is less than 5 3 is less than 5 4 is less than 5 5 is not less than 5
C.
1 is less than 5 2 is less than 5 3 is less than 5 4 is less than 5 5 is not less than 5
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