【单选题】38 Piles of dung can’t be relied upon when it comes to estimating elephant numbers because
A.
they are different in size
B.
they scatter an over the region.
C.
they are different in decay rate.
D.
they are different in quality.
【判断题】民间剪纸往往通过谐音、象征、寓意等手法,提炼、概括自然形态构成图形。
【单选题】Piles of dung can't be relied upon when it comes to estimating elephant numbers because______.
A.
they are different in size.
B.
they scatter all over the region.
C.
they are different in the rate of decay.
D.
they are different in quality.
【单选题】油轮空船压载的目的是()。Ⅰ减少过大的中拱弯矩;Ⅱ减轻船体震动;Ⅲ有利于提高船舶的航速。
【判断题】民间剪纸往往通过谐音、象征、寓意等手法,提炼、概括自然形态构成图形。( )
【单选题】爱国主义与爱社会主义、拥护祖国统一具有深刻的( )。
【单选题】When estimating population parameters, a point estimate is:
A.
a range of possible values for a population parameter.
B.
always equal to a population value.
C.
a statistic that estimates a population parameter.