It is not easy to distinguish cultured pearls from______pearls.A．permanentB．preciousC．auth

It is not easy to learn English well, but if you _

It is not easy to learn English well, but if you _

It is not easy to learn English well, but if you _

It is not easy to look after three small children because something always happens unexpec

The passage implies thatA．it is not easy to persuade manufacturers to adopt the new design

Medicine should not be kept where it is _______ to children。 A。 easy B high C。 accessible D。 accept