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【单选题】
酒店大堂属于( )空间。
A.
共享空间
B.
固定空间
C.
模糊空间
D.
静态空间
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参考答案:
举一反三
【判断题】已知连续型的随机变量分布函数 , 为概率密度,则 ( ).A. 对 B. 错
A.
正确
B.
错误
【单选题】有关绦虫成虫的特征,描述错误的是
A.
均为雌雄异体
B.
虫体扁平分节
C.
头上有固着器官
D.
消化道简单
【单选题】No one could say how the magician was able to pull a rabbit out of his hat until he later ______________ his tricks.
A.
threw light on
B.
take light on
C.
take out
D.
took out
【单选题】有关绦虫成虫的特征描述错误的是
A.
均为雌雄同体
B.
虫体扁平分节
C.
头上有固着器官
D.
睾丸滤泡状
E.
消化道简单
【单选题】Could you me how to it in Chinese? [     ]
A.
say ; speak
B.
speak ; say
C.
tell ; say
D.
say ; tell
【单选题】已知连续型随机变量 X 的概率密度函数为: 则,X的方差D( X )等于 (本题10.0分)
A.
0.4
B.
0.5
C.
0.6
D.
0.7
【单选题】I loved the cabin in the village because it ’s full of() charm.
A.
urban
B.
city
C.
rustic
D.
common
【简答题】完形填空。 Hi, my name is Jeff. Last summer I had a l vacation.  I went  across We drove six to eight the USA 2 my parents by car. 3 a day. In big cities, we stayed in big hotels. The food 4 usually delici...
【简答题】完形填空 Hi, my name is Peter. Last summer I had a 1 vacation. I went across  the USA 2 my parents by car. We drove six to eight 3 a day. In big cities, we stayed in big hotels. The food 4 usually delicio...
【判断题】已知连续型随机变量【图片】的概率密度函数为【图片】,【图片】为常数,则【图片】.
A.
正确
B.
错误
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