Why does Wal-Mart think it reasonable to open its store there?
A.Customers there broadly accept it.
B.Other buildings have mined the scenery of the ancient site.
C.The local shops are small and expensive.
D.Wal-Mart does no harm to the nearby sceneries.
第1题
塔架式抽油机(LCYJ10-8-105HB)是一种无游梁式抽油机,特点是把常规游梁式抽油机的()换成一个组装的同心复合轮。
A.游梁、驴头
B.游梁、驴头、支架
C.游梁、驴头、连杆
D.游梁、驴头、尾梁、连杆
第6题
拨游梁式抽油机驴头,应将抽油机停在接近下死点(),刹紧抽油机刹车。
A.0.1~0.2m
B.0.2~0.25m
C.0.25~0.30m
D.0.3~0.5m
第7题
异形游梁式抽油机(CYJY10-5-48HB)又称为双驴头抽油机,其结构特点是:去掉了普通抽油机()以一个后驴头装置代替。
A.游梁
B.尾轴
C.连杆
D.尾梁
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