γ运动神经元在牵张反射中的作用是A．直接诱发梭外肌的收缩B．直接发动牵张反射C．引起腱器官兴奋D．

A．A.Bound morphemes can not occur unattached

B．B.Bound morphemes are never words but always parts of words

C．C.All the prefixed are bound morphemes

D．D.Sometimes we can use bound morphemes alone

not function alone grammatically and has to combine with other morphemes to create new words.

A．active root

B．fixed root

C．non-free root

D．bound root

an not function alone grammatically and has to combine with other morphemes to create new words.

A．active root

B．fixed root

C．non-free root

D．bound root

A、bound morphemes and free morphemes

B、lexical morphemes and grammatical morphemes

C、derivational morphemes and inflectional morphemes

D、adjective morphemes and numeral morphemes

A．bound morphemes and free morphemes

B．inflectional morphemes and derivational morphemes

C．bound roots and affixes

D．prefixes and suffixes

Which of the following are free morphemes？ (Choose more than one)

A.-ing

B.house

C.dog

D.-tion

Bound morphemes are always attached to free morphemes to form. new words.()

Which of the following is NOT true？

A．Roots are not necessarily free morphemes.

B．Bound morphemes are always affixes.

C．All free morphemes are roots.

D．All affixes are bound morphemes.

A．A.Earthward is a compound word

B．B.Earthward contains two free morphemes

C．C.Earthward is a derivational word with three morphemes

D．D.Earthward contains one free morpheme and one bound morpheme