surrogate GRE专八

1.The cat acted as a surrogate mum to the chicks.

这只貓当起了小鸡的妈妈来。

2.For some people, reading travel books is a surrogate for actual travel.

对某些人来说, 读游记可替真正的旅行。

3.wives of MPs are looked on as surrogates for their husbands while the latter are at Westminster.

当议员们在威斯敏斯特时，他们的夫人被看作其丈夫的理人。

4.In the 1950s Harlow compared monkeys raised by their mothers with monkeys reared by wire or terrycloth surrogate mothers.

哈娄将由大的子，以及由铁丝或绵布制成的大的子作比较，发现由大的子变得不合群且极具攻击性。

5.It should be noted that the method for updating multipliers is similar but different to the surrogate subgradient method, which is more robust and stable for accelerating the convergence rate.

大量的测试表明了，在新的更新乘子的公式下，收敛性和稳定性更好。