出自:专升本

食物的氧热价是指()
A:1克食物氧化时所释放的能量
B:食物氧化时消耗1升氧时所能释放的所有能量
C:体外烯烧1克食物所释放的能量
D:氧化1克食物,消耗1升氧时所释放的全部能量
E:食物氧化时,消耗1mol氧时所释放的能量
Is that seat taken?()
A:Please don't worry. 
B:I don't think so. 
C:Why not? 
D:It's very nice.
如果一台计算机不含(),则称之为裸机。
A:外部设备
B:内存
C:任何软件
D:CPU
当血液pH值降低时,对血红蛋白与氧亲和力的影响是()
A:亲和力增高。氧离曲线左移
B:亲和力降低,氧离曲线左移
C:亲和力增高,氧离曲线右移
D:亲和力及氧离曲线无明显改变
E:亲和力降低,氧离曲线右移
以拨号入网方式连入因特网时,不需要的硬件设备是()
A:PC机
B:网卡
C:MODEM
D:电话线
铰链四杆机构有曲柄存在的条件是什么?
下列带有通配符的文件名中,能包含文件ABC. FOR的是()。
A:A
B:B
C:C
D:D
Excel作饼图时,选中的数值行列()。
A:只有前一行或前一列有用
B:只有末一行或末一列有用
C:各行列都有用
D:各行列都无用
螺纹联接的防松方法常用()、()、()。
激光打印机属于非击打式打印机。
The policeman gave the thief a blow in()stomach.
A:his
B:/
C:the
D:that
非零的无符号二进制整数后加三个零得到一新数,该新数是原数的()
A:三倍
B:四倍
C:六倍
D:八倍
计算结果无法表示的错误值是()。
A:(#DIV/O!)
B:(#NUM!)
C:(#VALUE!)
D:(#######)
微处理器就是微型计算机。
一起重吊钩通过尾部螺纹拧上螺母挂在吊具的孔中(看作松螺栓联接)已知载荷Q=25kN,吊钩材料为35钢,许用应力[σ]=60N/mm2,试求吊钩尾部螺纹的小径。
(Excel电子表格)Excel工作表中,不能改变单元格的宽度和高度。
蔡元培在就任北大校长的演说中,谈到的“三事”包括()
A:精神独立
B:学术自由
C:砥砺德行
D:道义相勖
用简单的线条和规定的符号代表构件和运动副所绘制的机构简图称为()。
A:机构运动简图
B:机构示意图
C:运动线图
A:()time do you have lunch? B: I usually have lunch at 12.
A:Where
B:What
C:When
实际齿数相同时,直齿圆柱齿轮、斜齿圆柱齿轮和直齿圆锥齿轮三者齿形系数之间的关系为()
A:直齿圆柱齿轮的最大
B:斜齿圆柱齿轮的最大
C:直齿圆锥齿轮的最大
D:三者数值相同
Could you give me a helping hand?()I want to clean my garage
A:How's that.  
B:Sure. What can I do for you? 
C:Not at all.
D:Which one?
八进制数56转换为十六进制数是()。
A: 56
B: 2E
C: 1F
D: 36
下列几项中,()不是计算机局域网。
A:Internet网
B:NOVELL网
C:WindowsNT网
D:以太网
I had my meals()when I was ill in bed with a bad cold.
A:to bring
B:bring
C:brought
D:bringing
园林艺术:苏州拙政园
有两杆,一为圆截面,一为正方形截面,若两杆材料,横截面积及所受载荷相同,长度不同,则两杆的()不同。
A:轴向正应力σ
B:轴向线应变ε
C:轴向伸长△1
D:横向线应变
机械效率等于()功与()功之比,它反映了()功在机械中的有效利用程度。
轴承代号6205表示轴承的类型是()、轴承的内径是()mm。
利用控制面板窗口中的"日期/时间"图标,可改变日期,以防止每月26日这天CIH病毒的发作。
A characteristic of American culture that has become almost a tradition is to respect the self-made man-the man who has risen to the top through his own efforts, usually beginning by working with his hands. While the leader in business or industry or the college professor occupies a higher social position and commands greater respect in the community than the common laborer or even the skilled factory worker, he may take pains to point out that his father started life in America as a farmer or laborer of some sort.
This attitude toward manual (体力的) labor is now still seen in many aspects of American life. One is invited to dinner at a home that is not only comfortably but even luxuriously (豪华地)furnished and in which there is every evidence of the fact that the family has been able to afford foreign travel, expensive hobbies, and college education for the children; yet the hostess probably will cook the dinner herself, will serve it herself and will wash dishes afterward, furthermore the dinner will not consist merely of something quickly and easily assembled from contents of various cans and a cake or a pie bought at the nearby bakery. On the contrary, the hostess usually takes pride in careful preparation of special dishes. A professional man may talk about washing the car, digging in his flowerbeds, painting the house. His wife may even help with these things, just as he often helps her with the dishwashing. The son who is away at college may wait on table and wash dishes for his living, or during the summer he may work with a construction gang on a highway in order to pay for his education.

第1题,共1个问题
(单选题)According to the passage, the hostess cooks dinner herself mainly because ()
A:servants in American are hard to get
B:she takes pride in what she can do herself
C:she can hardly afford servants
D:It is easy to prepare a meal with canned food