A．Increase the sample number.B．Extend the time of the study.C．Observe the sample group
A. Increase the sample number.
B. Extend the time of the study.
C. Observe the sample group of vegetarians.
D. Both A and B.
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It is not necessary for you to bargain at everything.
A. Y
B. N
C. NG
M: Why don't you get him a pocket calculator？
Q: Why doesn't the woman know what to get for the man's father？
(18)
A. She feels that he won't accept anything.
B. She's sure he 'already has a pocket calculator.
C. She thinks he has almost everything he wants.
D. She's afraid he wants more than she can afford.
A．Promoting the ad service to other companies.B．Placing ads for other companies on the
A. Promoting the ad service to other companies.
B. Placing ads for other companies on their site.
C. Selling their products through this online ad store.
D. Selling information to other companies.
听力原文：M: How de you manage to work and to go to school at the same time？
W: My classes are at night and I work during the day.
Q: What do we learn from this conversation？
(17)
A. The woman goes to school during the day and works at night.
B. The woman has to work to support herself.
C. The woman's classes are not difficult.
D. The woman studies at night.
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