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【判断题】
( )检查主轴机构的精度,不仅需检查静态条件下的精度,也需检查动态条件下的精度。A.
正确
B.
错误
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举一反三
【单选题】Experts think that _____ recently discovered painting may be _____ Picasso. [ ]
A.
the; 不填
B.
a; the
C.
a; 不填
D.
the; a
【单选题】It is improper to _____ between pupils according to their family background.
A.
different
B.
differentiate
【判断题】It is improper to ask the interviewer what the time frame is for deciding who will progress to the next stage.
A.
正确
B.
错误
【单选题】对于采用万用表区分红外晶体管描述不正确的是：
A.
无红外光照情况下，红外三极管正反向电阻为∞
B.
无红外光照情况下，红外二极管正向小电阻，反向电阻∞
C.
有红外光照情况下，红外三极管正反向都为小电阻
D.
有红外光照情况下，红外发射二极管正向小电阻，反向∞
【单选题】Public health experts say that (the) money one spends (avoiding) illness is (less) than the cost (to be) sick.
A.
the
B.
avoiding
C.
less
D.
to be
【简答题】It is improper to ___ (different) between pupils according to their family background.
【简答题】方桩同一纵向受力钢筋不宜设置()个以上的接头。
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