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【单选题】
增大轴在截面变化处的圆角半径,有利于。A.
零件的轴向定位
B.
降低应力集中，提高轴的疲劳强度
C.
使轴加工方便
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【单选题】Employees whose values match the values of the organization they work for generally ________________ than employees whose values don't match the organization.
A.
are less successful
B.
show more commitment to their jobs
C.
seem less satisfied
D.
change jobs more frequently
【简答题】锌是人体生长发育. 维持器官正常功能不可缺少的微量元素，人体缺锌会引起多种疾病，缺锌者可在医生指导下通过服用葡萄糖酸锌等含锌保健食品来补锌。已知葡萄糖酸锌的化学式为C 12 H 22 O 14 Zn(相对分子质量为455)。试回答： (1)葡萄糖酸锌是由_______种元素组成的。 (2)葡萄糖酸锌中所含锌元素的质量分数为_______ (计算结果精确到0．1％)。 (3)现有一支20 mL某品牌...
【单选题】Tax will be levied on those employees whose payments was______.
A.
over $4, 000
B.
$40, 000
C.
over $40, 000
D.
$4, 000
【判断题】Nearly 40% of companies have employees whose only job is to read other employees' email.
A.
正确
B.
错误
【单选题】A company paid $500,000 in merit raises to employees whose performances were rated A, B, or C. Each employee rated A received twice the amount of the raise that was paid to each employee rated C; each...
A.
$370
B.
$625
C.
$740
D.
$1250
E.
$2500
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