正确答案: B

外力去除后不能消失而残留下来的变形

题目：杆件在受到外力作用后，产生的塑性变形实际上就是( )。

解析：B

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举一反三的答案和解析：

[单选题]舷角是：()

船首尾线至物标方位线的夹角

[单选题]When the tail-shaft is drawn from a vessel in dry-dock, which of the following inspections is required to be carried out?

The propeller hub taper and shaft keyway should be inspected for cracks or corrosion

[单选题]CO2钢瓶的重量在减少多少以上时，应充加？

10%

[单选题]以下关于船舶压载水和沉积物控制和管理国际公约的说法中，错误的是：_______

当事国应确保悬挂其国旗的船舶根据附则的规定进行检验和认证

[单选题]One function provided by a hydraulic accumulator is to ___.

absorb shocks occurring in the system

[单选题]转移性右下腹痛是______特有体征。

急性阑尾炎