1) host-stage selection

寄主龄期选择
1.
Interactions between the parasitoid Lysiphlebus japonicus Ashmead and its host Aphis craccivora Koch:host-stage selection and its effect on development;
日本柄瘤蚜茧蜂与其寄主豆蚜的相互作用:寄主龄期选择及其对发育的影响
2) host age preference

寄主龄期选择性
3) host age

寄主龄期
1.
Effects of host age at the time of oviposition, superparasitism and host starvation after parasitism on the growth of Cotesia plutellae larvae and their teratocytes;
寄主龄期、过寄生和寄主饥饿处理对菜蛾盘绒茧蜂幼蜂及畸形细胞发育的影响
2.
Effects of host age and temperature on interspecific competition between Cotesia plutellae (Kurdjmov) and Oomyzus sokolowskii (Kurdjmov).;
寄主龄期、温度对菜蛾盘绒茧蜂与菜蛾啮小蜂种间竞争的影响
4) host instar selection

龄期选择
5) host selection

寄主选择
1.
Research progress in host selection and underlying mechanisms,and factors affecting population dynamics of Chilo suppressalis;
二化螟寄主选择行为与种群消长机制的研究进展
2.
The effects of learning experiences of Anastatus japonicus on its host selection process;

学习经历在平腹小蜂寄主选择过程中的作用
3.
Effects of host potassium nutrition on development, survival and host selection of Bemisia tabaci (Gennadius);
寄主钾营养对烟粉虱发育、存活和寄主选择的影响
6) host preference

寄主选择
1.
Choice experiment and bioassay were conducted in the laboratory to identified the mechanism of of induced resistance in popular after Clostera anachoreta feeding and its effect on the host preference and development of the insect herbivore.
在室内采用选择性和生物测定方法,研究了昆虫取食危害杨树对杨扇舟蛾寄主选择行为和生长发育的影响。
补充资料:欧洲式期权、美国式期权与亚洲式期权
欧洲式期权、美国式期权与亚洲式期权
【欧洲式期权、美国式期权与亚洲式期权】期权合约所规定的权利有一定的时效期,过了失效日后,权利即行作废。一些期权规定权利仅能在有效期的最后一天执行,这种期权被称为欧洲式期权(ell功pean叩tions);另一些期权则容许在有效期内任何一天执行,这种期权被称为美国式期权(一~oPtions)。值得指出的是,虽名为欧洲式或美国式期权,但已无任何地理上的意义。由于欧洲式期权的规定过于严格,又出现了一种“改变的欧洲式期权”,它允许期权在一定的时间范围内进行交易。可见,美国式期权为期权购买者提供了更多的选择机会,因此,它的购买者也往往需支付更高的保险费。近年来无论在欧洲或美国,所交易的期权均以美国式为主,欧洲式期权虽仍存在,但其交易量已比不上美国式期权。 在so年代末期,市场上又出现了一种所谓亚洲式期权(asian ontions),但也无地理上的意义,其差别主要在于履约价值(exe而sev公此)的计算。以买权为例,无论是美国式期权或是欧洲式期权,执行权利所能得到的履约价值均为当时标的物的市价减去履约价格,再乘以合约所定的数量,但亚洲式期权的履约价值则为权利期间内标的物市价的平均(计算至履约日为止),减去履约价格,再乘以合约所定的数量。
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参考词条