This might explain the（）feeling I have long had about pop music.

I prefer classic music（）pop music.

I prefer classic music（）pop music

People wandering in the fairground or park area（）wear a uniform.

What must the Master or person in charge of a ship enter in the logbook after conducting a boat drill? （）

The purpose of the skirt or trunk in four-stroke cycle engines is to act in a similar manner to a （）.

The pop music_____.

“THE JAZZ AGE” refers to the decade after World War I, when the nation became predominantly urban. It took its name from the rich and varied new popular music which was essentially a creation of the Negro in the city. Historians cannot agree on the origin of the word “jazz”: some say it is of African or Creole origin, and others say that it derived from the name of a musician. But there is no denying that this American form of music originated with Negroes in the first age of their migration to the city, and jazz flourished primarily because of the talent, energy, and imagination of Negroes in cities. In Europe, too, the years after World War I were an age of musical experiment. But jazz was a more democratic, more communal kind of experiment. For the old World saw developing novel forms of “art music”, of salon and concert-hall music.

Practice 15　　(1) The development of jazz can be seen as part of the development of American popular music, especially dance music. In the twentieth, jazz became the hottest new thing in dance music, much as ragtime had at turn of the century, and as would rhythm and blues in the forties, rock in the fifties, and disco in the seventies. (2) But two characteristics distinguish jazz from other dance music.

In the case of an injury causing a person to be incapacitated，the Master or person in charge of a mobile offshore drilling unit must submit a report to the（）.

What is the purpose of the OSPF router ID in a OR/BOR election?（）

SOLAS requires a lifesaving training manual be provided in each crew cabin or in the（）.