Why does the man know so much about San Francisco?
[A] He thinks the city is pretty.
[B] He likes to talk with people.
[C] He travels a lot in the city.
[D] He teaches ethnic history at a university.
第7题
BTS3012的射频前端子系统包括的主要单板为()。
A、DTRU
B、DDPU
C.DTMU
D.DMLC
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