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【单选题】
蓄电池常见技术状况检查及维护不包含 ( ) 。A.
检查极桩是否清洁无腐蚀
B.
检查蓄电池内部穿壁联条连接是否松动
C.
检查蓄电池充电状况
D.
检查蓄电池极板厚度
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举一反三
【单选题】I know him very well. He’s sure to _____ his promise
A.
carry on
B.
carry through
C.
carry out
D.
carry off
【单选题】I know him very well because we ____________friends for ages.
A.
are
B.
were
C.
had been
D.
have been
【单选题】— This returned scientist has become one of the top experts in his field. — Yes, I know him very well. He once _____ in South America with wild animals for eight years. [ ]
A.
has worked
B.
worked
C.
had worked
D.
has been working
【单选题】关于球旁细胞描述错误的是
A.
位于入球微动脉管壁的平滑肌
B.
胞质内有许多分泌颗粒
C.
与内皮细胞之间无基膜和内弹性膜相隔
D.
其功能是分泌血管紧张素原
E.
与球外系膜细胞之间有缝隙连接
【单选题】关于球旁细胞描述错误的是
A.
位于入球微动脉管壁的平滑肌转化而成
B.
位于出球微动脉管壁的平滑肌转化而成
C.
球旁细胞内含有分泌颗粒（内含肾素）
D.
肾素是一种蛋白水解酶
E.
球旁细胞呈上皮样，立方形
【单选题】I don't know him very well. He's just a(n) __ acquaintance.
A.
uncanny
B.
strange
C.
casual
D.
indifferent
【简答题】径向滑动轴承有__、__两种结构形式。
【单选题】I know him very well, because we _______ friends for ages.
A.
have made
B.
made
C.
have been
D.
are
【单选题】I know him very well because we ______ friends for ages.
A.
are
B.
we’re
C.
has been
D.
have been
【单选题】This returned Chinese scholar has become one of the top experts in this field .—Yes , I know him very well . He in Africa with wild animals for eight years .
A.
worked
B.
has been working
C.
has worked
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