【单选题】【消耗次数：1】
Charles regretted ______ the TV set last year. The price has now come down.
①
buying
②
to buy
③
of
④
from
参考答案：
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相关题目
【单选题】
11.The United Nations managed to ______millions of people from hunger last year.
①
preserve
②
sell
③
save
④
. buy
【单选题】
These children are ______ this year than they were last year.
①
more tall
②
more taller
③
very taller
④
much taller
【单选题】
These children are _________ this year than they were last year.
①
moretall
②
moretaller
③
verytaller
④
muchtaller
【单选题】
16.-This dress was last year’s style. -I think it still looks perfect ______ it has gone out this year.
①
so that
②
even though
③
as if
④
ever since
【单选题】
These children are_______this year than they were last year.
①
moretall
②
moretaller
③
verytaller
④
muchtaller
【单选题】
9. These children are ____this year than they were last year.
①
more tall
②
more taller
③
very taller
④
much taller
【单选题】
They [填空] in Beijing nearly three weeks last year.
①
stayed
②
stay
③
stays
④
staying
随机题目
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/6EFB3C2013FC4E033200C1A9A9000E55.png title=题干.png alt=题干.png width=807 height=36 style=width: 807px; height: 36px;/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/46918E1566E3B7754A6DFDF826D7F77B.png style= title=1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/2D4BFCB4099D3ECDA21908B30BB8B6DF.png title=3.png style=white-space: normal;/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/985655EEA05455DD696FB0233B0ECD1F.png title=2.png style=white-space: normal;/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/48BEE96B3527491AD2FAB49C3BC56340.png title=4.png style=white-space: normal;/>
【单选题】
三个箱子,第一箱中有4个黑球1个白球,第二箱中有3个黑球3个白球,第三个箱中有3个黑球5个白球,现随机取一个箱子,再从这个箱中取出一个球,则取到白球的概率是( ).
①
53/120
②
9/19
③
67/120
④
10/19
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/3F44424811773A9DEA14A317F21E100F.png title=题干.png alt=题干.png width=695 height=46 style=width: 695px; height: 46px;/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/B4A1FBBB05D41179A1A0905BF4B3FCA2.png style=width: 352px; height: 98px; title=2.png width=352 height=98/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/3B3009B83E7506FCF15373A7F0F67602.png title=1.png style=white-space: normal; width: 352px; height: 74px; width=352 height=74/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/FFD46E383E8700A017C1CC4F5C443642.png title=3.png style=white-space: normal; width: 373px; height: 87px; width=373 height=87/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/7D23572729288CD7605F165B1809FB33.png title=4.png style=white-space: normal; width: 401px; height: 94px; width=401 height=94/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/6B30E24CED33F2D2978D5BD6BDB0891E.png title=题干.png alt=题干.png width=823 height=76 style=width: 823px; height: 76px;/>
①
0.1
②
0.15
③
0.2
④
0.25
【单选题】
设X1,X2,...,Xn是来自总X体的简单随机样本,则X1,X2,...,Xn必然满足( )
①
独立但分布不同;
②
分布相同但不相互独立;
③
独立同分布;
④
不能确定
【单选题】
若两个随机变量X,Y相互独立,则它们的连续函数g(x)和h(y)所确定的随机变量( ).
①
不一定相互独立
②
一定不独立
③
也是相互独立
④
绝大多数情况下相独立
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/DE0B303CD9B0D9E07BAA348D594E6EEE.png title=题干.png alt=题干.png width=805 height=84 style=width: 805px; height: 84px;/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/1E630CD3D1616B1241329F59B82EC103.png style= title=1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/DF9D30A20651AFBE6C69A70B1592EC9F.png title=3.png style=white-space: normal;/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/46629B4BD3E0D61047901F0BE8C34111.png title=2.png style=white-space: normal;/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/FD6622733B31283F27C3B193A92D77C0.png title=4.png style=white-space: normal;/>
【单选题】
将一枚硬币连抛两次，则此随机试验的样本空间为（ ）
①
{（正，正），（反，反），（一正一反）}
②
{(反，正)，（正，反），（正，正），（反，反）}
③
{一次正面，两次正面，没有正面}
④
{先得正面，先得反面}