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【简答题】
“ ( 无论何事 ) happens , I'll look after my father well ,” the Most Beautiful Filial Child ( 最美孝心少年 ) Liang Weiyue said . 2 . Lianyungang , one of the ( 东方的 ) seaside cities , will play an important role in the Belt and Road Initiatives ( “一带一路”战略构想 ) . 3 . He told his parents his ideas about the camping several times , and they ( 同意 ) with him at last . 4 . As a ( 传统的 ) festival , Dragon Boat Festival is becoming more and more popular . 5 . In order to protect the environment , lots of ( 工厂 ) have been moved away from the people ' s living areas in the city .
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举一反三
【单选题】电力电子器件按器件被控程度分为半控型器件,如 ( ) ;全控型器件,如 GTO 、 MOSFET 、 IGBT 等;不可控器件,如电力二极管等。
A.
IGBT
B.
GTO
C.
SCR
D.
SITH
【单选题】在产品生命周期的成熟期,为了吸引顾客,延长产品成熟期的时间,保持和提高市场占有率,市场营销策略要突出的重点是( )
A.
“快 ”
B.
“换’’
C.
“稳”
D.
“改”