现有八种物质:①液态氮 ②蒸馏水 ③四氧化三铁 ④澄清的石灰水 ⑤生理盐水 ⑥氧

题型:填空题

问题:

现有八种物质:①液态氮 ②蒸馏水 ③四氧化三铁 ④澄清的石灰水 ⑤生理盐水 ⑥氧气 ⑦氯酸钾 ⑧清新的空气。属于混合物的是_______;属于纯净物的是_______;属于化合物的是             。

考点:单质和化合物纯净物和混合物氧化物同素异形体
题型:填空题

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为

多余选项。请将答案写在答题纸的指定位置。

What to do if you don’t feel popular?

 小题1: Call your friends. Plan to do something. The worst feeling is staying home alone, because it makes you feel even more lonely.

Try to make new friends. Choose friends carefully, not just because you think they’re popular.  小题2:  

Be yourself. If you want to become friends with someone who’s popular, don’t make yourself into someone you are not just to impress that person.

Be nice. Be friendly. Be outgoing. But don’t overdo it! Talk to close friends if you are feeling really bad. Or you might want to write it down in a diary.

 小题3:  You could take pictures of your friends, or collect their school pictures. This will remind you, when you are feeling unpopular.

Think up your own ideas. These suggestions might not work for everyone.

What to do if you have a problem with you teacher?

Talk to your parents, or another adult who will listen to you and perhaps can help. Talk to friends.  小题4:   

Don’t give the teacher a reason to have problems with you. Do your work, complete your task, attend the class seriously and take notes. Maybe you just need to give the teacher a chance.

 小题5:  

Talk to the teacher if you feel comfortable doing this. Don’t be nasty (闹别扭的), but express your concerns. Listen to the teacher, as well.

Just accept the fact that you’re not going to love all your teachers.

A.Try to take part in activities.

B.Do something special for yourself.

C.Smile is the best way to make friends.

D.Try to find out what the problem is.E. Try to deal with the problem all by yourself.

F. Maybe they have had problems with the same teacher, too.

G. And remember, making good friends takes time. Choosing a popular person to be friends with is OK if they are nice.

题型:填空题

下列不属于政府采购行为的是( )。

A.某县政府无偿接受某外国基金会捐赠的办公器材

B.省政府雇用某建筑公司装修办公大楼

C.某县政府购买复印机20台

D.某局租赁会议厅一层作为国际性会议场地

题型:填空题

Jenny is on holiday now. I wonder ______________________.

A.when she will come back

B.when she came back

C.when will she come back

D.when did she come back

题型:填空题

质量事故报告包括几个方面的内容?

题型:填空题

患者,男,46岁。上腹部慢性周期性疼痛20年,今日突发腹部剧痛,急诊就医。腹部平片示:患者右侧膈肌下方游离气体影。最可能的疾病是()

A.肠梗阻

B.胃溃疡

C.急性肠炎

D.胃肠穿孔

E.十二指肠溃疡

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