题目

果蝇的长翅（V）对残翅（v）为显性。但是，即使是纯合的长翅品系的幼虫在35℃温度条件下培养（正常培养温度为25℃），长成的成体果蝇也是残翅的。这种现象称为“表型模拟”。现有一只残翅果蝇，要判断它是属于纯合残翅（vv），还是“表型模拟”，则应选用的配种方案和培养温度条件分别是 A．该残翅果蝇与异性残翅果蝇、35℃                   B．该残翅果蝇与异性长翅果蝇、35℃ C．该残翅果蝇与异性残翅果蝇、25℃          �用方框中所给单词的适当形式填空，使短文通顺、正确、连贯（每个单词限用一次）time  horse  by  also  enough  however  few  ready  send  hold   To: Christin foo@hotmail.comDate: 23rd MarchSubject: The Riding for the Disabled AssociationHi Christine,Sorry I haven’t emailed lately —I’ve been very busy since becoming a volunteer for the Riding for the Disabled Association.Every Saturday, I help to get the horses 小题1:___________ for the disabled(残疾) riders. Many more disabled people want to ride 小题2:___________ than you’d imagine. It’s a disadvantage that I don’t know how to ride —I’d love to got on long rides with the riders— but I’ll learn soon 小题3:___________. Right now, I’m just happy to be able to lead the horses around for the disabled riders.I’m小题4:___________ helping to organize a sale, which will be 小题5:___________ next month. It’s a lot more work than helping the disabled. I need to collect second-hand things to sell at the sale. There are 小题6:___________ things available(获得的) than I thought, but I’m sure we’ll have enough小题7:__________ next month.I hope the sale raises more money than last month’s walk. It was rainy, so too few people took part in the event. Last week, we held an auction(拍卖). The auction took much less 小题8:__________ to organize than the walk. 小题9:__________, for some reason, people offered too little money for the things, so we didn’t raise enough money.I’m 小题10:___________ you some pictures in the letter, as well as a speech I gave last week.