The information below is taken from a dictionary page. jaguar: n. a type of large, yellow-

The information below is taken from a dictionary page.
jaguar: n. a type of large, yellow-colored cat with black markings found in the southwestern region of the U. S. and in Central and South America.
jargon: 1. n. speech that doesn’t make sense.
2. n. an unknown language that seems strange or impossible to understand.
3. n. a language made up of two or more other languages: His jargon was a mixture of French and English.
4. n. the special vocabulary of a field or profession: Her report on puters was filled with jargon.
jaunt: 1. n. a trip taken for fun.
2. v. to go on a brief pleasant trip: We jaunted to the country last Saturday.
javelin: 1. n.. a spear(矛) most monly used as weapon or in hunting.
2. n. a light metal or wooden spear that is thrown in track-and-field sport events.
3. n. the event in which a javelin is thrown.
4. v. to strike, as with a javelin.
jazz: 1. n. a type of music that originated in New Orleans and is characterized by rhythmic beats.
2. n. popular dance music influenced by jazz.
3. n. empty talk.
4. ad. of or like jazz: a jazz band, jazz records.
Jennet: n. a small Spanish horse.
jest: 1.n. thing said or done to cause amusement; joke.
2. (idiom) in jest: as a joke ; in fun; not seriously.
3.v.make jokes 
【小题1】Which meaning of the word javelin is used in the sentence below?
At the petition, Jack drew his arm back and threw the javelin 50 yards. A．Definition (定义) 1B．Definition 2C．Definition 3 D．Definition 4【小题2】Which meaning of the word jargon is used in the sentence below?
Doctors often speak in medical jargon. A．Definition 1 B．Definition 2 C．Definition 3 D．Definition 4【小题3】What does the word jazz mean in the following sentence?
Don’t give me that jazz, for I am a practical person. A．rhythmic beatsB．a type of music C．a kind of danceD．meaningless talk【小题4】Which word is needed to fill in the following sentence?
His reply was taken half seriously, half in    .A．javelinB．jestC．jaunt D．jargonB