If a student wants to discuss questions with the teacher, he/she should
A. go to the teacher's office after should.
B. make an appointment in advance.
C. go to the teacher's at working hours.
D. discuss the questions in class.
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What's the best way to travel a short distance in most cities?
A. By car.
B. On foot.
C. By taxi.
听力原文:W: Goodbye, John. And please send my regards to your parents.
M: Sure I will. Thank you very much. Bye.
What did the woman ask the man to do?
A. To give her some presents.
B. To give some presents to his parents.
C. To give her best wishes to his parents.
Only a small part of the sun's energy reaches the earth's surface because most of it is______.
A. absorbed by the clouds in the lower atmosphere
B. reflected by the gases in the upper atmosphere
C. lost in the upper and lower atmosphere
D. used to evaporate water from the oceans and lakes
听力原文:M: There is a non-stop train for Washington and it leaves at 2:30.
W: It's faster than the 2 o'clock train. Besides, we can have something to eat before getting on the train.
What do we learn from the conversation?
A. The 2:00 train will arrive earlier.
B. The 2:30 train has a dining room.
C. The woman prefers to take the 2:30 train.
D. They are going to have some fast food on the train.