题型:选择题 The boy said ________ couldn’t he work out the problem but his teacher didn’t know how to do it.A.thoughB.neverC.hardlyD.not only 查看答案
题型:多项选择题 一般来说,损失频率与损失程度之间的关系是( )。A.损失频率与损失程度成反比关系B.损失频率与损失程度成正比关系C.损失频率越高,损失程度越大D.损失频率越低,损失程度越大E.损失频率越高,损失程度越小 查看答案