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【单选题】
对标准公差的论述,下列说法中错误的是()
A.
标准公差的大小与尺寸和公差等级有关,与该尺寸是表示还是轴无关。
B.
在任何情况下,尺寸愈大,标准公差必定愈大
C.
尺寸相同,公差等级愈低,标准公差愈大
D.
某一尺寸段为 >50-80mm ,则尺寸为 60mm 和 75mm 的同等级的标准公差数值相同。
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举一反三
【单选题】You are too rigid: you must learn to change your plans when the situation it.
A.
calls on
B.
calls for
C.
calls forth
D.
calls in
【单选题】If you want to____, you must learn to work hard while you are still young.
A.
make your way    
B.
make its way       
C.
make a way         Dmake the way
【简答题】生物研究中,一般将样本容量 称为大样本。
【简答题】You must learn to balance (yourself) when you ride a bicycle.(英译汉)
【简答题】If you want to make ________ way in the world, you must learn to work hard while you are still young.
【单选题】You must learn to consider all possible results you begin to carry out your plan.
A.
although
B.
before
C.
because
D.
unless
【单选题】Unless you are willing to let others control your time, you must learn to politely say no to other people's requests.
A.
Unless you are willing to let others control your time
B.
you must learn to politely say no to other people's requests.
【多选题】下列性质属于力学性质的有 () 。
A.
强度
B.
硬度
C.
弹性
D.
脆性
E.
质量
【单选题】If you want to be a factory manager, you must learn to make machines. [     ]
A.
what
B.
when
C.
where
D.
how
【判断题】代换检测法所代换的元器件要与原来的规格、性能相同,不能用大功率电阻来代换小功率的电阻。
A.
正确
B.
错误
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