If two varieties of the same language exist side by side in a community with each having a

A certain species of bird has two basic varieties, crested and noncrested. The birds, whic

The situation where two very different varieties of the same language are used side by sid

If two sounds are in complementary distribution, they are ______ of the same phoneme.A．all

Traditional plant breeding involves crossed varieties of the 【M1】______ same species in w

A company makes two products using the same type of materials and skilled workers. The fol

If you try to chase two rabbits at the same time you will not catch ( )one.