两样本均数的比较,需检验无效假设μ=μ是否成立,可考虑用()。
A.t检验
B.μ检验
C.相关分析
D.回归分析
E.χ检验
参考答案:A, B
While shopping, people sometimes can't help________into buying something they don't really need.[ ]
A. to persuade
B. persuading
C. being persuaded
D. be persuaded
调节系统的整定就是根据调节对象调节通道的特性确定()参数。