What are the positive economic effects of tourism？
A. Foreign exchange earnings
B. Infrastructure investment
C. Employment generation
D. Enclave tourism
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What are the problems that seasonal workers have to face?
A. Job insecurity
B. No guarantee of employment from one season to the next
C. The duration of seasonal workers is temporary
D. The unsatisfactory housing and working conditions
Which cruise is not representing the dramatic changes on ocean ships.
A. The Olympic
B. The Britannic
C. The Titanic
D. The Tatanic
十九八七六五四三二一
A. aaaa
B. bbbb
C. cccc
D. dddd
一二三四五六七八九十
A. 111
B. 222
C. 333
D. 444
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