下列物质在氧气中燃烧的现象，正确的是（） A．铁丝在氧气

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问题选择题

下列物质在氧气中燃烧的现象，正确的是（　　）

A．铁丝在氧气中燃烧火星四射，放热，生成黑色物质

B．红磷在氧气中燃烧产生白雾，放出大量的热

C．木炭燃烧生成二氧化碳，倒入瓶中的澄清石灰水变浑浊

D．硫燃烧发出淡蓝色火焰，放热，生成有刺激性气味的气体

答案

答案：A

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Dogs are very good pets. They are very (1)f to people and very beautiful, too. Most dogs get

on well with (2)c and their parents. Others are good watchdogs because they cry loudly when a

strange (陌生的) person (3)a .

When you buy a dog, an important thing to think about is its (4)s -buy a small dog if your

home is small and a bigger one if (5)y is larger. Many people don't know what to feed their dogs.

Dogs eat (6)a anything! They like meat, rice and lots of other things. You can buy lots of food

made for (7)d in shops. Don't let your dog eat too much. Feed it only once a day. Always leave

some (8)c water for your dog. It can get (9)t very quickly, especially in summer.

Remember that dogs need (10)e . You should take it for a walk every day. Don't keep your

dog inside all day.

单项选择题

资料收集环节可进行的任务，以下错误的是（）。

A、对以交强+商业混保情况，可以选择先发起交强或者将交强、商业打包发起理算，理算员就能一次性处理。

B、若发起的理算任务还未被理算员接收，资料收集岗可以撤销理算任务。

C、对于仅仅已接收，但没有保存的理算任务，可以先进行“任务放弃”，再进入资料收集环节撤销。

D、资料收集环节不可以进行“查勘修改”和“立案修改”操作