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【单选题】
出境货物最迟应在出口报关或装运前15天报检,个别检验周期较长的货物应留有相应的检验时间。( )
A.
正确
B.
错误
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参考答案:
举一反三
【判断题】已知随机变量X服从均匀分布U(-1,1),则X的特征函数为
A.
正确
B.
错误
【简答题】—What can we do? —______. [     ] A  I can swim B  We can draw it
【多选题】已知随机变量 X 服从均匀分布 U(1, 3) , 则 ( ).
A.
X 的中位数和期望都是2
B.
X 的0.1分位数是1.2
C.
X 的0.1分位数是2.8
D.
X 2 的0.1分位数是1.44
【单选题】Which of the following is NOT mentioned in the passage?
A.
Family is the place where we learn attitudes regarding eating.
B.
Family is the place where we learn behaviors regarding eating.
C.
When conflict occurs in a family its members may suffer from distress bad to health.
D.
Divorce is the best policy to promote health.
【单选题】正平面在哪个投影面上反应实形?
A.
水平投影
B.
正面投影
C.
侧面投影
【单选题】Only in this way _______ our goals.
A.
we can reach
B.
can we reach
C.
we can arrive
D.
can we arrive
【单选题】Which of the following sentences is true according the passage?
A.
The more we read and learn, the more learned we will become.
B.
The more we read and learn, the more confused we will grow.
C.
The more we read and learn, the more honorable we will be.
D.
The more we read and learn, the more numbers we know.
【判断题】2003年到2007年之间我国钢材价格出现了猛烈的上涨。()
A.
正确
B.
错误
【单选题】Only in this way ______ our goals.
A.
we can reach
B.
can we arrive
C.
we can arrive
D.
can we reach
【单选题】水平面在哪个投影面上反应实形?
A.
水平投影
B.
正面投影
C.
侧面投影
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