皮皮学，免费搜题
登录
logo - 刷刷题
搜题
【简答题】
（1）下列常见的五种食品中含有丰富蛋白质的是______． ①烤肉   ②鸡蛋   ③牛奶   ④油条   ⑤黄瓜 （2）根据表可知上述五种食品中含有的元素有______（填写元素符号）． 元素种类 食品品种 钙 铁 锌 碘 奶类、绿色蔬菜、水产品、肉类、豆类 肝脏、瘦肉、蛋、鱼、豆类、芹菜 海产品、肝脏、瘦肉、奶类、豆类、小米 海产品、加碘盐 （3）下列关于钙、铁、锌、碘四种元素的说法中，正确的是______． ①钙、铁属于常量元素 ②补铁有利于维持人体内的水分 ③锌是甲状腺素的重要成分 ④钙主要存在于人体的骨骼和牙齿中 （4）“三鹿问题奶粉”曝光后，同学经网上搜索得知三聚氰胺的化学式为：C 3 N 3 （NH 2 ） 3 ，他对三聚氰胺做出了下列判断，你认为不正确的是______． ①三聚氰胺由三种元素组成 ②三聚氰胺中碳、氢元素的质量比为1：2 ③三聚氰胺的相对分子质量为126 ④三聚氰胺中含有氮元素的质量分数为60%
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案：
举一反三
【单选题】_____ anyone to spend New Year’s Eve with, I went to watch a show alone and I truly enjoyed it.
A.
On the point of
B.
All the way
C.
In the absence of
D.
Finding my way
E.
For a while
查看完整题目与答案
【单选题】Which of the following is NOT included in the present space tourism?
A.
Visits to museums.
B.
Visits to space camps.
C.
Visits to rocket-launch recovery sites.
D.
Low-gravity aircraft trips.
查看完整题目与答案
【简答题】发动机完成一个工作循环,曲轴转()圈,凸轮轴转()圈。
查看完整题目与答案
【简答题】It is tested ineffective that if a person with depression frequently visits doctor but without ______ in symptoms.
查看完整题目与答案
【简答题】_________________of anyone to spend New Year’s Eve with, I went to watch a show alone and I truly enjoyed it.
查看完整题目与答案
【简答题】Who visits customers to show them samples?
查看完整题目与答案
【单选题】发动机完成一个工作循环,曲轴转 圈,凸轮轴转 圈,各气门开启 次。
A.
1,2,2
B.
2,2,1
C.
2,1,1
D.
2,1,2
查看完整题目与答案
【单选题】四冲程发动机完成一个工作循环曲轴转____圈,进排气门各开启____次,凸轮轴轮____圈。
A.
1，1，1
B.
2，2，2
C.
2，1，1
D.
1，1，2
查看完整题目与答案
【单选题】四冲程发动机完成一个工作循环，曲轴与凸轮轴所转圈数比是（）。
A.
1 ∶ 1
B.
1 ∶ 2
C.
2 ∶ 1
D.
3∶ 1
查看完整题目与答案
【单选题】It can be inferred from the passage that the future of online visits will mostly depend on whether ______.
A.
the employers would remain confident in them
B.
they could effectively replace office visits
C.
HMOs would cover the cost of the service
D.
new technologies would be available to improve the E-health project
查看完整题目与答案
相关题目：
【单选题】_____ anyone to spend New Year’s Eve with, I went to watch a show alone and I truly enjoyed it.
A.
On the point of
B.
All the way
C.
In the absence of
D.
Finding my way
E.
For a while
查看完整题目与答案
【单选题】Which of the following is NOT included in the present space tourism?
A.
Visits to museums.
B.
Visits to space camps.
C.
Visits to rocket-launch recovery sites.
D.
Low-gravity aircraft trips.
查看完整题目与答案
【简答题】发动机完成一个工作循环,曲轴转()圈,凸轮轴转()圈。
查看完整题目与答案
【简答题】It is tested ineffective that if a person with depression frequently visits doctor but without ______ in symptoms.
查看完整题目与答案
【简答题】_________________of anyone to spend New Year’s Eve with, I went to watch a show alone and I truly enjoyed it.
查看完整题目与答案
【简答题】Who visits customers to show them samples?
查看完整题目与答案
【单选题】发动机完成一个工作循环,曲轴转 圈,凸轮轴转 圈,各气门开启 次。
A.
1,2,2
B.
2,2,1
C.
2,1,1
D.
2,1,2
查看完整题目与答案
【单选题】四冲程发动机完成一个工作循环曲轴转____圈,进排气门各开启____次,凸轮轴轮____圈。
A.
1，1，1
B.
2，2，2
C.
2，1，1
D.
1，1，2
查看完整题目与答案
【单选题】四冲程发动机完成一个工作循环，曲轴与凸轮轴所转圈数比是（）。
A.
1 ∶ 1
B.
1 ∶ 2
C.
2 ∶ 1
D.
3∶ 1
查看完整题目与答案
【单选题】It can be inferred from the passage that the future of online visits will mostly depend on whether ______.
A.
the employers would remain confident in them
B.
they could effectively replace office visits
C.
HMOs would cover the cost of the service
D.
new technologies would be available to improve the E-health project
查看完整题目与答案
参考解析：
知识点：
题目纠错 0
发布
创建自己的小题库 - 刷刷题