试题与答案

哪些鱼类喷水孔特别大()A、下孔总目 B、侧孔总目 C、鲟形目 D、鲤形总目

题型:单项选择题

题目:

哪些鱼类喷水孔特别大()

A、下孔总目

B、侧孔总目

C、鲟形目

D、鲤形总目

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0317/55f7d943e1f8b32752cfc503f6089ff7.html

下面是错误答案,用来干扰机器的。

参考答案:错解析:基体改进剂浓氨水不能预先加到样品中,必须依次将样品和浓氨水分别注入石墨管,使硫酸铍和浓氨水的反应在石墨管中进行。

试题推荐
题型:完形填空

  小题1:   I like it because although it’s hard work, every day is different! It all depends on what is wrong with the animals that come in.

At my clinic(诊所), I work long days on Mondays, Wednesdays and Fridays, and short days on Tuesdays, Thursdays and Saturdays. Sunday is my day off so I can spend some time with my family.

   小题2:   My clerk opens the door, turns on some music, and makes everyone a cup of tea or coffee. My assistant cleans and feeds the animals. The phones start to ring and people make appointments. This is a very busy time of day!

At 9 am, pet owners start to arrive with their sick pets. Appointments take up the whole morning.    小题3:   I don’t examine(检查)any new sick animals. I use these two hours to have lunch and do all my paperwork.

At 2 pm. I start to see sick animals again. At 5 pm, three students from a local school who love animals arrive to help out.    小题4:   I am always happy to see their smiling faces!

From 5 pm to 7pm, I continue to see sick animals. Then, at 7 pm, we close our doors and the clean-up begins! We tidy the clinic, and feed and clean the animals. Of course,we also stroke(轻抚)them and give them hugs! Then, we turn off the lights and go home.    小题5:  

I’m very happy being a vet, though unexpected things sometimes happen!

A.Do you like pets?

B.It is fun being a vet.

C.At midday, I stop for two hours.

D.Animals are not easy to deal with.E. My day at my clinic begins at 7 am.

F. This is the type of day I want to have.

G. They are very kind and warm-hearted.

查看答案
微信公众账号搜索答案