皮皮学,免费搜题
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【多选题】
抽样的一般步骤有( )
A.
界定总体
B.
设计抽样方案
C.
制定抽样框
D.
决定抽样方法
E.
实际抽取样本
F.
,评估样本
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【单选题】I prefer living in a city because I think it is to live close to my work.
A.
convenient
B.
traditional
C.
modern
D.
temporary
【简答题】下列程序的运行结果中第 2 行是 ( 1 ) ,第 3 行是 ( 2 ) 。 #include using namespace std; void m(); int a=3; int main() { for(int i=0;i<2;i++) m(); cout<
【单选题】微量元素指的是含量( )。
A.
大于体重的0.05%
B.
大于体重的0.01%
C.
小于体重的0.05%
D.
小于体重的0.01%
【单选题】“I am sorry I broke your mirror .” “ Oh, really ?______. ”
A.
It’s OK with me.
B.
It doesn’t matter .
C.
Don’t be sorry.
D.
I don’t care.
【简答题】补全对话。 A: I'm anxious, because I 1 find my backpack. B: Really? 2 did you drop it? A: I think I 3 it during the concert. B: So it 4 still be in the symphony hall. Go there to have a look. By the way, 5...
【简答题】What will my life be like in ten years? In ten years, I think I’ll be a , because I like playing with children. I will lots of interesting students, and I’ll also able to make friends with other teach...
【单选题】听力原文:M: I'm looking at my test score and I think that it should be higher. I think an answer got marked wrong that should have been marked right. W: These things can happen let's double-check the answ...
A.
Have an exam.
B.
Double-check the answers.
C.
Correct the test score immediately.
D.
Mark the wrong answer.
【单选题】听力原文:W: Hello. 15th District. Officer Mary speaking. M: Help. Yeah, uh, it was wild, I mean really weird. W: Calm down sir! Now, what do you want to report? M: Well, I'd like to report a UFO sighting....
A.
He was returning home from a party.
B.
He just got off work when he saw the UFO.
C.
He was driving home from a restaurant.
D.
He was coming home from a police station.
【判断题】微量元素指的是人体需要量很低的元素。
A.
正确
B.
错误
【简答题】看图选择。 (     ) 1. A. Yes,  here is a pencil. B. No,  here is a ruler. (     ) 2. A. Sorry, I only have three candies. B. Sorry, I only have two candies.
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