皮皮学,免费搜题
登录
搜题
【简答题】
我校初三研究性学习小组对迎霞湖水质的状况进行了相关的研究调查. (1)取回水样,静置后过滤.在过滤操作中需要用到的玻璃仪器有漏斗、______和烧杯. (2)该小组同学要检验迎霞湖水属于硬水或软水,可选用的物质是______. (3)若要测定迎霞湖水的酸碱度,可选用(填字母)______. A.紫色石蕊试液B.无色酚酞试液C.PH试纸 (4)在活动中,某同学不小心被飞来的蜜蜂蜇了(蜜蜂毒液呈碱性)很痛,下列物质涂抹可以减轻疼痛的是(填字母)______. A.食盐水 B.食醋 C.鸡蛋清.
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【多选题】曲轴承的选配项目包括( )等。
A.
选择合适内径的轴承
B.
检验轴承两端的高出量
C.
检验自由弹开量
D.
检验定位凸点
E.
轴承钢背表面质量参数
【简答题】阅读理解。 My name is Dan and I have two good friends, Nick and Robert. Robert and I are twelve years old. Nick is eleven. I was born on November 10th,1999. And Robert was born on September 10th. I like re...
【单选题】听力原文:M: Hi, Sue. Where have you been? W: Oh. Hi, Dan. I was just at the library. I have to hand in my biology paper tomorrow. M: Tomorrow? Oh, no. I thought it wasn't due till Monday. W: Oh. Don't wor...
A.
They' re classmates.
B.
They' re roommates.
C.
They' re cousins.
D.
They' re lab partners.
【单选题】Dan: Have you ever participated in a risky sport? Kay: Yes, I like hang gliding. It's fantastic to be able to fly like a bird. Though landing is sometimes difficult, I've always felt hang gliding is q...
A.
What sports are risky?
B.
Do you ever get into some difficult situations'?
C.
Have you ever hurt yourself in an accident?
D.
Have you ever been to a sports centre?
【单选题】Dan:I have _____colored eyes.
A.
brown
B.
hazel
【简答题】阅读理解。 My name is Dan and I have two brothers,Bob and Ray. We like hamburgers for lunch. Boband I like French fries, but Ray doesn't. I don'tlike eggs for breakfast, but Bob and Ray often eatthem. I li...
【单选题】听力原文:M: Hi, Sue. Where have you been? W: Oh. Hi, Dan. I was just at the library. I have to hand in my biology paper tomorrow. M: Tomorrow? Oh, no! I thought it wasn't due till Monday. W: Oh. Don't wor...
A.
They're classmates,
B.
They're roommates.
C.
They're cousins.
D.
They're lab partners.
【单选题】药物通过各种途径进入人体后引起的皮肤黏膜的急性炎症反应称
A.
药毒
B.
膏药风
C.
湿疮
D.
梅毒
E.
瘾疹
【单选题】I HAVE DANGEROUS LIST means ______.
A.
I have some dangerous cargo on board
B.
My cargo is dangerous
C.
My vessel is inclined
D.
My vessel has not been trimmed properly
【简答题】5 Dan: I have a muscular build and short ________ (blond / dark) hair.
相关题目: