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【单选题】
Section A Reading Comprehension [25 min] In this Section there are four passages followed by questions or unfinished statements, each with four suggested answers marked A, B, C and D. choose the one that you think is the best answer. Mark your answers on your answer sheet. Text A Many of the home electric goods which are advertised as liberating the modern woman tend to have the opposite effect, because they simply change the nature of work instead of eliminating it. Machines have a certain novelty value, like toys for adults. It is certainly less tiring to put clothes in a washing machine, but the time saved does not really amount to much: the machine has to be watched, the clothes have to be carefully sorted out first, stains removed by hand, buttons pushed and water changed, clothes taken out, aired and ironed. It would be more liberating to pack it all off to a laundry and not necessarily more expensive, since no capital investment is required. Similarly, if you really want to save time you do not make cakes with an electric mixer, you buy one in a shop. If one compares the image of the woman in the women’s magazine with the goods advertised by those periodicals, one realizes how useful a projected image cab be commercially. A careful balance has to be struck: if you show a labor-saving device, follow it up with a complicated recipe on the next page on no account hint at the notion that a woman could get herself a job, but instead foster her sense of her own usefulness, emphasizing the creative aspect of her function as a housewife. So we get cake mixes where the cook simply adds an egg herself, to produce “ that lovely home-baked flavor the family love”, and knitting patterns that can be made by hand, or worse still, on knitting machines, which became tremendously fashionable when they were first introduced. Automatic cookers are advertised by pictures of pretty young mothers taking their children to the park, not by professional women presetting the dinner before leaving home for work. 66. According to the passage, many of the home electric goods which are supposed to liberate women_________
A.
remove unpleasant aspects of housework.
B.
Save the housewife very little time.
C.
Save the housewife’s time but not her money.
D.
Have absolutely no value for the housewife.
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【多选题】变频器实现三段速控制需要连接哪些外部端子
A.
STF
B.
RL
C.
RM
D.
RH
E.
SD
【简答题】变频器1速、2速、3速三段速对应的参数依次是
【单选题】三种受压杆如图所示,杆1、2、3的最大压应力分别为σ max1 、σ max2 、σ max3 ,下列结论中正确的是______。
A.
σ max1 =σ max2 =σ max3
B.
σ max1 >σ max2 =σ max3
C.
σ max2 >σ max1 =σ max3
D.
σ max2 >σ max1 >σ max3
【单选题】对差速器描述 错误 的是
A.
汽车差速器能够使左、右(或前、后)驱动轮实现以不同转速转动的机构
B.
目前在东风本田车型中只有四驱车才有后轮差速器
C.
后差速器油不需要定期更换
D.
检查后差速器油液位,需要启动车辆
【单选题】输入2整个数的,计算并输出最大值,请选择画线处的语句。 #include int main() {int max2(int a,int b); int a,b,max; printf("a,b="); scanf("%d%d",&a,&b); ___________ printf("max=%d \n",max); return 0; } int max2(int a,int b) { retur...
A.
max=max2(a,b);
B.
max=max(a,b);
C.
max2=max(a,b);
D.
max(a,b);
【单选题】已知程序如下: 根据程序提示依次输入4,2,-5,则程序运行结果是 [     ]
A.
max=max
B.
max=2
C.
max=-5
D.
max=4
【单选题】Three bars are subjected to compression as shown. If the absolute values of the maximum compressive stresses in bars 1, 2 and 3 are σmax1, σmax2 and σmax3, respectively, then their relationship should...
A.
σ max1 < σ max2 < σ max3
B.
σ max1 < σ max2=σ max3
C.
σ max1 < σ max3 < σ max2
D.
σ max1 = σ max3 < σ max3
【判断题】当用 PLC 控制变频器的三段速运行时,变频器的运行模式参数 P79 应设为 1 .
A.
正确
B.
错误
【单选题】奥迪分动器的保养方法和操作过程,请您选择出正确的选项是
A.
分动器通常使用于四驱车辆,需要油温在 10-60 ° C 之间,熄火检查
B.
奥迪汽车分动器油加注量都是 4.5L ,如果加注困难,需让车轮旋转
C.
奥迪汽车分动器油属于终身免维护,所以只是检查是否缺少就可以
D.
如果不长期使用四驱,油就不会变质,因此不必更换分动器油
【单选题】三种受压杆件如图。设杆1、杆2和杆3中的最大压应力(绝对值)分别用σ max1 、σ max2 、σ max3 ,则有( )
A.
σ max1 =σ max2 =σ max3
B.
σ max1 >σ max2 =σ max3
C.
σ max2 >σ max1 =σ max3
D.
σ max2 max1=σ max3
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