标准化后的率()
A.反映了实际水平
B.不会随标准的选择变化而变化
C.不能用于比较
D.两样本标化率比较不要作假设检验
E.仅仅作为比较的基础,它反映了一种相对水平
参考答案:E
句型转换。
1. There are some boys under the tree. (改为否定句)
_____ _____ _____ boys under the tree.
2. There is a car in front of the building. (改为一般疑问句并作肯定回答)
_____ _____ a car in front of the building?
_____ , _____ _____ .
3. The hospital is next to a factory. (对划线部分提问)
_____ _____ the hospital?
4. There are ten cups on the desks. (对划线部分提问)
_____ _____ _____ _____ _____ on the desks?
5. Tom is behind Lingling. (改为同义句)
Lingling is _____ _____ _____ Tom.
邀请招标与公开招标相比,其优点是()。
A.程序简化
B.报价较低
C.用时较短
D.风险降低