皮皮学，免费搜题
登录
搜题
【简答题】
一太阳能热水器装水80kg，集热管每分钟吸收太阳能约为7×10 4 J，不计热量损失，水的比热容为4.2×10 3 J/（kg?℃）．则该热水器每小时能使水温升高多少摄氏度？
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】In recent years, an increasing number of agers have the problem of obesity（肥胖）. This problem shouldn’t be ignored. It’s harmful disorder that can cause a number of health problems in children. Man...
【单选题】Most children with healthy appetites are ready to eat almost anything that is offered to them and a child' s rarely dislikes food unless it is badly cooked. The【21】a meal is cooked and served is most ...
A.
procedure
B.
process
C.
way
D.
method
【简答题】Most children with healthy appetites are ready to eat almost anything that is offered them and a child rarely dislikes food __ 26__ it is badly cooked. The __ 27__ a meal is cooked and served is most ...
【简答题】单词拼写(共10小题,每小题0.5分,共5分) 小题1:The little box c______ the little boy’ s toys. 小题2:Her brother is e________ in a fast food restaurant , earning $40, a week. 小题3:Please be quiet.The weather report is being...
【单选题】As a third-year medical student, you examine your first patient. You find that he is 52 years old, has a round face, acne, and a large hump of fat on the back of his neck. He complains that he is too ...
A.
Non – insulin-dependent diabetes mellitus
B.
Insulin-dependent diabetes mellitus
C.
A secretory tumor of the anterior pituitary
D.
A secretory tumor of the posterior pituitary
E.
A secretory tumor of the adrenal cortex
【单选题】以下关于金属烤瓷全冠牙体预备要求的说法中,错误的是( )
A.
两邻面相互平行
B.
颈缘线连续一致
C.
前牙切端预备出1.5～2.0mm间隙
D.
各轴壁无倒凹，轴面角处圆钝
E.
最大周径降至颈缘
【单选题】以下关于金属烤瓷全冠牙体预备要求的说法中,错误的是()
A.
两邻面应平行
B.
龈缘线连续一致
C.
前牙切端预备出1.5-2.0mm间隙
D.
各轴壁无倒凹,轴面角处圆钝
E.
最大周径降至龈緣
相关题目：
参考解析：
知识点：
题目纠错 0
发布
