单选题

There are eight questions below，

The organizers of a music festival are scheduling exactly six master classes, one class per day for six consecutive days. Three of the classes will be given by violinists and three by pianists. The only musicians who can teach the classes are the violinists F, G, H, and J, and the pianists R, S, T, W, and Z. The festival's organizers must observe the following constraints:

No musician will teach more than one class. F will not teach unless the first three classes are taught by violinists. If J teaches a class, it will be the sixth. R will teach only if T teaches the first class. No pianist will teach on a day that immediately pre- cedes or immediately follows a day on which W teaches

单选题

Which of the following can be the musicians scheduled to teach the master classes, in the order in which they will teach, from first to sixth?

单选题

If R is scheduled to teach the second class, which of the following could be scheduled to teach the third class?

单选题

Which of the following must be true about the schedule of master classes?

A、 J is not scheduled to teach if R is scheduled to teach.
B、 J is not scheduled to teach if T is scheduled to teach
C、 J is not scheduled to teach if W is scheduled to teach.
D、 W is not scheduled to teach if F is scheduled to teach
E、 Z is not scheduled to teach if W is scheduled to teach.

单选题

If pianists are scheduled to teach the fourth, fifth, and sixth classes, which of the following must be true?

A、 F is scheduled to teach the first class
B、 G is scheduled to teach the first class
C、 H is scheduled to teach an earlier class than the class Z is scheduled to teach.
D、 R is scheduled to teach an earlier class than the class T is scheduled to teach.
E、 S is scheduled to teach an earlier class than the class T is scheduled to teach.

单选题

Which of the following must be true about the schedule of the master classes?

A、 If F is scheduled to teach a class, then H is also scheduled to teach a class
B、 If J is scheduled to teach a class, then R is also scheduled to teach a class.
C、 If J is scheduled to teach a class, then S is also scheduled to teach a class
D、 If T is scheduled to teach a class, then R is also scheduled to teach a class.
E、 If W is scheduled to teach a class, then Z is also scheduled to teach a class.

单选题

If classes are scheduled so that the classes taught by pianists and the classes taught by violinists alternate with one another, which of the following can be true?

A、 F is scheduled to teach the fourth class
B、 G is scheduled to teach the first class.
C、 H is scheduled to teach the third class.
D、 R is scheduled to teach the fifth class.
E、 W is scheduled to teach the second class.

单选题

If a violinist is scheduled to teach the first class and another violinist is scheduled to teach the sixth class, which of the following can be true?

A、 F is scheduled to teach the second class.
B、 H is scheduled to teach the sixth class.
C、 R is scheduled to teach the fourth class
D、 T is scheduled to teach the second class.
E、 W is scheduled to teach the third class.

单选题

Which of the following CANNOT be true about the schedule of the master classes?

A、 F is scheduled to teach the third class.
B、 G is scheduled to teach the first class.
C、 T is scheduled to teach the sixth class.
D、 W is scheduled to teach the sixth class.
E、 Z is scheduled to teach the fifth class.