The most elemental grammatical units in a language are______.A．phonesB．wordsC．morphemesD．p

● Which of the following elements can be called the key element of a computer？（71） （71）A．p

But water, natures most essential element, is becoming increasingly______.A．barrenB．absent

Concentration is one of the most important elements in dangerous driving.

In English, "un-" and "dis-" are calledA．prefixes.B．infixes.C．suffixes.D．grammatical words

Which one may be the most fundamental element of corporate culture？A.The attitude of tho

A Grammatical Institute of the English Language w