R. P. is the abbreviation in common use to stand for Right Pronunciation. （)

EFL in paragraph 4 is an abbreviation of 查看材料A.easi

Which of the following is NOT an abbreviation？A．Prof.B．Gang.C．Ad.D．Fridge.

Which of the following is an abbreviation？A．smogB．WTOC．bikeD．edit

In the foreign trade business, the trade terms CIF is often used. CIF is the abbreviation

EFL in paragraph 4 is an abbreviation of______.A.

In the statement PPP for a new structure-based lesson PPP is the abbreviation of _____ _____ _____.