1.非选择题- (共2题)
(1)搜集资料:A:全脂奶粉含有蛋白质、脂肪和蔗糖等成分,脱脂奶粉含有高蛋白质、低脂肪等成分。B:假冒脱脂奶粉有两种:一是用全脂奶粉冒充脱脂奶粉,二是用淀粉冒充。
(2)鉴定是否用淀粉冒充:_____________________________________________________。
(3)鉴定是否用全脂奶粉冒充:_____________________________
(4)结果分析:______________________。
(5)通过以上鉴定,我们还不能完全肯定是正宗的脱脂奶粉,还需对其___________含量进行检测。
(1)自由水的生理作用:_______________。
(2)农民将新收获的种子放在场院晒,是为了除去部分_________,然后再将其储存。这样做有两个目的:一是防止水分过多而霉变;二是可降低种子的____________作用,从而减少有机物的消耗。这说明_____水多代谢旺盛。
(3)如果将晒过的种子再用火烘烤,失去的是_______水。
(4)血液凝固时________水转变成_______水。说明自由水和结合水可以相互转化。
(5)新鲜的鸡蛋清呈液态胶状,而臭鸡蛋清则是相对更“稀”的液体,呈水状,这是因为在新鲜的鸡蛋清中的水与蛋白质结合在一起,形成液态胶体,这时的水为_______,是细胞和生物体的______,而臭鸡蛋中的蛋白质被微生物分解成小分子物质,使这部分水释放出来,转变为_____。
2.单选题- (共7题)

A.1表示大量元素,2表示主要元素,3表示基本元素,4表示最基本元素 |
B.1表示基本元素,2表示最基本元素,3表示大量元素,4表示主要元素 |
C.1表示最基本元素,2表示基本元素,3表示主要元素,4表示大量元素 |
D.1表示主要元素,2表示大量元素,3表示最基本元素,4表示基本元素 |
A. 组成生物体和组成无机自然界的化学元素中,碳元素的含量最多
B. 人、动物与植物所含的化学元素的种类差异很大
C. 组成生物体的化学元素在无机自然界都可以找到
D. 不同生物体内各种化学元素的含量比例基本相似

A.用双缩脲试剂检测大豆种子研磨滤液呈紫色 |
B.蛋白质检测实验最好选用花生作为材料 |
C.三种种子都常用来做成面粉或榨取食用油 |
D.脂肪检测实验最好选用大豆作为材料 |
①鉴定还原糖时,要先加入斐林试剂甲液摇匀后,再加入乙液
②制作花生子叶临时装片检测脂肪时,需用显微镜才能看到被染成橘黄色或者红色的脂肪颗粒
③用双缩脲试剂鉴定蛋白质与用碘液鉴定淀粉,呈现的颜色相同
④斐林试剂鉴定还原糖需要水浴加热
⑤脂肪的鉴定需要用清水洗去浮色
⑥蛋白质的鉴定中先加双缩脲试剂A液后加入双缩脲试剂B液,或先加双缩脲试剂B液后加入双缩脲试剂A液,只要分别加入即可
A.②④ | B.①②③ |
C.②③④⑥ | D.④⑤⑥ |
3.选择题- (共1题)
The entire house was lit with lights. It was Meera's wedding the next day. Seema walked to her daughter's bedroom. Meera was not there, so she left the envelope on Meera's bed and went away. When Meera came back after a bath downstairs, her eyes fell on the envelope. She picked it up and opened it Sitting on the bed, she started to read it:
My darling daughter, I'm so happy for my darling is getting marked! To such a good man! At the same time, I'm a little worried, too. The reason? You're going to a new house where everything is going to be new: the people, relationships and surroundings. Yes, you're smart and Vinod will be there with you to help, but I have a few things to say:
Accept Vinous parents as your parents. Remember that your mother-in-law will have her own understanding about you. So it's up to you give her a good impression.
Earn respect from family members. If that means changing yourself a little bit and adapting to their customs, just do it. It will help you to settle into your new home.
Never compare your mothers home and their home. It may not be appreciated.
The kitchen is one place where small fights can appear. Ifs your mother-in-law s kingdom, so ask her permission if you want to cook something. If she offers help, accept it. This Ml help in building trust between you. Similarly, offer her your help when she s busy cooking. Thus, a new relationship -will be born: one of respect and understanding.
Finally, respect your husband, as he's your life partner. Remember that a marriage re-quires trust, love and compromise (妥协).
I could have sat with you and told you, but I felt that writing all this down would make you understand better and I'm sure you'll give your whole heart to this relationship. Remember that both Papa and I are here for you always.
Love,
Ma
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【1】题量占比
非选择题:(2道)
单选题:(7道)
选择题:(1道)
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【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:2
5星难题:0
6星难题:2
7星难题:0
8星难题:3
9星难题:2