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【单选题】
At an early date in the Qing period, audiences paid for the tea but not the opera they watched in the tea courtyard.A.
T
B.
F
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【简答题】The LSA ruled that definitions of 'dialect' and 'language' are generally a way
【单选题】Mutations in proto-oncogenes are generally _____ whereas mutations in tumor-suppressor alleles are generally _____.
A.
deletions; duplications
B.
recessive; dominant
C.
duplications; deletions
D.
dominant; recessive
E.
deletions; base-pair substitutions
【单选题】Diesel engine crankshaft deflection readings are generally taken at four crank positionsGood engineering practice requires the deflection gage or indicator to be________
A.
placed as near the crankpin axis as possible
B.
removed each time the crankshaft is repositioned
C.
left in place for all four readings
D.
reset to zero for all four readings
【简答题】Wireless telecommunications networks are generally implemented and administered using（）communication.This implementation takes place at the （）level of OSI model network structure. A．microwave B．radio ...
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